"Okay. I suppose I can also just do it myself whenever there's a gate, if you haven't decided to be obliterated by then." When Sauron has let everybody go she sends him to go wait where she left him before.
"...You probably know more about what this brand of prisoners wants to hear than I do. I'm not sure what to do about orcs yet."
"Continents are all inhabited. Having him raise a continent seems like it would have side effects if I didn't know enough about how continents worked or something."
"Valinor is perfectly safe and everything is edible and it's meant to be a paradise. A million orcs used to taking orders from Melkor, or dead since who-knows-when, are more in need of that than we are. Everyone in Valinor will be super annoyed to end up here but annoyed is all, the Eldar aren't innately inclined to war and we know how to build cities and agriculture and so forth."
"What about the Valar, would I have to order them around not to make trouble with this plan?"
"Yes, they will object to anyone except Elves who they've vetted for purity being permitted in Valinor. I think it's worth it anyway because it's the most cut-off from the other continents, hard for accidental contact to occur, aforementioned paradise considerations, and that Valinor has psychological healing attributes which I think the orcs are, of all Arda's peoples, most in need of."
Do you anticipate any problems from my perspective with implementing that plan?
Arrange that Elves will not fade. As described and without extraneous side effects I seem likely to find inconvenient translocate orcs to comfortable parts of Valinor and Elves to comfortable places on this continent.
"Any strong reason to be really selective about bringing people out of the Halls of Mandos?"