Do Elrond and Elros exist at all?

No. We never had humans.

They have some impressive qualities, poor design notwithstanding.

Oh?

Very adaptive. Good coping skills. Can handle an astonishing variety of conditions - very impatient, do things so quickly -

Perhaps we'll import some. The design flaws are fixable.

I think they'd be a bit disruptive in Valinor. Maybe import some to Endorë.

Our Valinor might be more robust than yours but yes, that's the thought.

I'm sure you'd cope but, like, they have new architectural trends on the scale of 'every Year' and the language changes to the point of mutual unintelligibility every thirty and I don't think immortality will change that about them.

The linguists will be thrilled.

I always regretted that my father died before he could meet them.

The Valar are working on something to extend what we have for oaths to you - we work on different architecture, so it wasn't terribly difficult to fix it so we can only swear about intentions and honesty, not binding future action. As soon as that's implemented he can probably meet humans no problem.

Or you could just collectively agree not to go dig the damned things up and we'll be fine.

I think under the circumstances it would be better to be much surer than 'get everyone to collectively agree on that' can get us.

It doesn't actually seem like it should be that hard not to steal things but I thought that before.

I would have thought so too.

Send our, uh, alternate universe selves our regards.

I will.

The humans who are already immortal and were until recently trapped under a mountain for three thousand years would like to go somewhere they can set up their own civilization sans Valar, please. The ones who were slaves and conscripts want to wait around until their families are resurrected but prefer not to do this in Valinor the place just creeps them out.

Endorë is pretty populous and has a Vala on it and it will take a considerable time to get anywhere else, either in regular ships or waiting for FTL tests. She would be happy to terraform them a planet if she can figure out how, though.

...the last time they accepted a continent as a present the present-giver got mad and sunk the continent so even though it's very generous of her they're a little wary.

She is an Elf with a ring, not Eru.

They aren't assuming that it goes by species.

Insofar as Eru is a species they should totally be racist against Erus in the continent acceptance department. Anyway, waiting for an already habitable planet to be found will probably take longer.

They can look themselves, if that has anything to do with the rate of finding them.