As far as the next seasons go, here are two things I'd really prefer if they did:
1.) Have every opening sequence show the names of those who are still in the game, so we can remember who's who. I had a hard time keeping track this season. Previously they've restricted it to the first episode, but as I recall they skipped it in the pilot of this season as well. That annoys the hell out of me and I hope they go back to the way they were.
2.) Stop doing reward challenges where the merged tribe is divided into two when there is an odd number, thus preventing one person from even competing to try to get that reward. That comes across as really cruel to me
I'd like to say "stop doing so many puzzle challenges as well", but that's a minor annoyance and I can live with it.