I'd be disappointed if she were.
I like that Arya is going to be a bad ass and her killing Trant was awesome. But I just don't feel like they developed the tension between (for some reason) wanting to be part of the many faced god clan and holding on to her Stark-ness. There just seemed like so much more they could do and just didn't.
Stannis better be dead. If not, Brienne's character takes a big hit for no reason.
I though the who Millisandra showing up right before he died was a bit too obvious. I agree that he could be like the Beric from the Brotherhood without Banners and he would be awesome leading them. If you don't get out of your duty to the watch when a major group of the watch kills you "for the watch" then that would suck. I would like that a lot better than him going warg and scooting around in his wolf's body for an episode. That would suck. I kind of hope that they burn him and he lives through that because he is part Targaryen as the clues have indicated.
The only thing I thought of with the princess is that Bronn got some of the antidote from the Sand Snake when she bit his lip. And that would suck. I also thought the Sand Snakes were very underdeveloped. Or the boyfriend could have some.