On a later iteration, Pilar Pineda will have in hand two artifact headbands, and they won't be delivered to Keltham until Keltham has demonstrated the ability to acquire a headband from Carissa without outside help.  After Keltham has that headband, it can be replaced with another, so Carissa can get hers back.  But Keltham and Carissa can't know that's the plan; so that it can be seen, later, that Keltham would have obtained a headband, that Carissa would have given it to him, even if Cayden Cailean had done nothing.

This is true even though Carissa would've ended up with two headbands, if not for Snack Service's interference.  It also matters to maintain similarity to the zeroth-timeline vision shown to that Lawful god, where Carissa gave her only +6/+6 artifact headband to Keltham, not expecting that it would or could be replaced.  It both provides evidence that the original timeline could've happened, and shows that the Nethysian alliance is not making the risk worse than that original timeline.

That is why Nethys cannot accelerate the process of Keltham ending up in the right frame of mind: cannot send His heralds to give Keltham a few Wish scrolls and his own future self's invented Wish-wordings for unleashing Rovagug and blasting Absalom.

That artificial, Nethys-directed timeline wouldn't look like Nethys's visions entrusted to a Lawful keeper, would not provide visible evidence that Keltham could and would have come to the same place alone.

(Could all of these events have been nudged more subtly by Nethys, in ways that even Pharasma scrutinizing them would be unable to detect afterwards, with Nethys Himself knowing how to avoid detection from having seen possibilities like that?  Maybe; but also Nethys could be telling the simple truth, if the simple truth gave Nethys all that He needed.  That judgment will end up being a matter of probabilities.)

On this iteration of World-2, then, Peranza's crisis should not be averted, Iomedae should not be wholly blinded and balked; for then the gods might wonder if Iomedae alerted and gathered into Her greater Self ought to have succeeded in analyzing and averting catastrophe, in the consequence of null action.  Iomedae should be given a chance to act, and visibly fail to avert the greater threat...

And many other events are left in place, or modified in ways that try to keep clear what could've happened, would've happened, without any intervention from Nethys.

Nethys's learning to the current iteration takes fewer tries than you might expect.

But still some.  Prophecy is shattered, as is Nethys Himself, and some things are just plain hard to foresee.

On the second iteration counting from zero, with the first really active Nethys-player, Ione is made oracle and Keltham thinks of 'eroLARP' 'tropes'.  Carissa Sevar gets a lot more attention when the researchers sell their souls early.  Abrogail Thrune makes a surprise appearance.

Nethys observes the effects with interest—more has changed than He first planned, from making Ione Sala an oracle—but it is not the primary focus of His planning.

Ione Sala is mainly setup for a far bolder intervention, vastly more daring than Nethys usually tries: He will set off a lesser god-war early, tire out Asmodeus against Zon-Kuthon who otherwise would have fought on His side.  And that, obviously, will raise divine interest levels very high; so he will need to trigger Otolmens's interdiction at nearly the same time.

It's the kind of bold ploy, interesting ploy, that Nethys wouldn't dare try if He had not on some level designated this universe a disposable one, permitted to end up as some alternate Nethys's learning experience.

So Zon-Kuthon, Nethys-prompted, attacks the archduke's villa as soon as Keltham is outside the Forbiddance, and—

—it turns out the Security used his only Teleport earlier that day, and Keltham takes a sword from a Kuthite.

Things like that are hard to foresee even if you're Nethys, if it hasn't all happened before in a well-foundedly previous future.

Zon-Kuthon grabs for Keltham's soul.  Abadar—now assigning these matters a noticeably higher priority—yanks that soul first and bespeaks His human representative, and Keltham is revived in Osirion, in the Dome, before Cheliax reacts fast enough.

Keltham is insufficiently shattered by the news of Hell.  This world does not yet seem that real to him, he is not enough in love with Carissa or anyone else.

Keltham is dath ilani, but also sheltered and only eighteen years old; he clutches yet to a comfortable hope in the power of trade to improve things in time, without needing to violate his lesser deontologies.

He chooses to work with Iomedae's Church and Osirion, rather than reject all their help and forge out on his own to do something they'd never approve.  He's already obligated to them and Abadar for rescuing him from Cheliax, after all; Keltham doesn't want to do anything that would make his hosts regret having saved him.

Carissa's way out has already been bought by Irori.  She and Ione Sala make their way to Keltham in Osirion after negotiations.

And the three of them live happily after, mostly smiling, if not deeply in love.

Golarion is somewhat improved (by the time this vision ends), but it will be long if ever before Golarion is in any position to offer much help to the rest of Creation.  Magic items will be lastingly cheaper; but it's predictable that Valmallos and Otolmens and Pharasma will combine Their workings, and change the key ingredient of Wishes and Permanencies away from diamond.  It hasn't happened yet, Golarion hasn't spent that many diamonds yet, but it will probably happen soon; the root of Creation can sustain an impressive quantity of Wishes and permanent magical effects, but not boundless such demands.

Asmodia remains in Hell after the Zon-Kuthon attack that slew Keltham, not being worth Raising with Keltham gone; but she is little known to Keltham or Carissa, and matters little more to them than the other trillions of souls there who can't can't can't take it.

Bad End.

And then it all begins again, inside the well-founded possible worlds.

A Keltham appears in a Golarion, and a Nethys who has seen the futures of three possible worlds like that one witnesses it.

It's not easy, if you're a god like Nethys, to prevent that Kuthite sword from striking down Keltham.  It's not the first obstacle like that, either.

So Nethys does something even more daring, on this iteration-3; He invites another god to join this strange game.

Having Ione Sala survive her oracleing by Nethys, was hard enough.  Few Asmodeans would survive being oracled by a Good or Chaotic god.  Nethys can see in advance things that are obvious in hindsight—so can even some mortals, once their Wisdom starts to get up to 22 or so, though it's still not common.

Nethys does not need to find out the hard way what happens if Paxti is oracled by Milani.

There is, in fact, only one other researcher who is obviously-to-Nethys a candidate for being made an oracle, and surviving, especially early in the timeline when Project personnel are easier for Cheliax to replace:  Pilar Pineda, who is utterly, blatantly loyal to Asmodeus and Asmodeus's Church, to Hell, to Cheliax's Crown.

Pilar might survive being made oracle of one of the less threatening gods—maybe not Milani, but Cayden Cailean perhaps, especially if her powers seemed like a joke at first.  And Pilar Pineda, conveniently enough, has buried deeply within herself a piece that would be sympathetic to some of Cayden Cailean's ideals.  Her alignment doesn't match, but that's half the point of oracles.

Pilar takes the Kuthite sword. Keltham survives the start of the Zon-Kuthon godwar.

He and Carissa make it to Abrogail's palace.  A humorous drama plays out, and Abrogail reading Keltham's mind is convinced herself that the tropes exist...

...and maybe they do exist??  Because all of Keltham's wild guesses then seem to come true???

WHAT???!?

An entire new dimension of the Game—for it's suddenly more plausible that it is a Game—unfolds before Nethys to be explored.