I'm not a fan of any interest check that lists out several options to choose from, since it gives me the impression that none of them are well thought out or detailed. Moreover, it's my personal belief that the Casual subforums is a poor place for a ASOIAF fandom roleplay, so I'll obviously be passing on this. As for your last idea, there are two different roleplays in the Advanced section that take place after the books, and one is only getting ready to launch. You could take a look at those, if you're so interested. Anyway, good luck with this interest check.