If you play Throne Room-Outpost in your normal turn, can you then choose which of them you clean up in your Outpost turn?
I would think yes, because when your normal turn is over, you can choose whether to resolve the normal Outpost or the Throne Room generated Outpost first.
Yes, you pick which Outpost to resolve first.
Maybe I am just confused here (which seems likely) but it doesn't seem like there is a difference between the "2" Outposts. You play Throne Room, and it plays Outpost 2 times. There isn't a "normal Outpost" and a "Throne Room generated Outpost" is there? The Throne room played both Outposts. It stays out to remind you that you played it twice, but you don't have a "normal" one. I suppose the two "take an extra turn"s happen at the same time (after this one), so choosing which one to resolve first makes sense, but it shouldn't affect the outcome right?
Yes, Throne Room played both Outposts. Both plays of Outpost are that one Outpost card, facilitated by Throne Room. So you don't discard Outpost until a confusingly late point as previously discussed. That leaves the question of what your options are for discarding Throne Room.
The Seaside rulebook says (going from a text file, feel free to consult a printed rulebook): "If you play or modify a Duration card with another card, that other card also stays in front of you until it's no longer doing anything. For example if you play Throne Room on Merchant Ship, both cards stay in play until the Clean-up phase of your next turn. The Throne Room stays in play to remind you that you are getting the effect of Merchant Ship twice on that next turn."
[That "or modify" is there because once it seemed like I might conceivably make a card like "reveal this when you play a card, to add 1 to numbers in that card's text."]
So the question is, at what point is Throne Room "no longer doing anything." As always I just want the ruling to match the rulebook as well as it can.
Throne Room played Outpost twice. You could say that Throne Room is "doing anything" until the card has resolved twice; or that it's "doing anything" until the card has resolved once. I am tentatively going with, it's "doing anything" until the card has resolved twice.