Do you guys expect some game changing changes (Masteries getting a big change, Jungle taking another beating, Top lane is tweaked?) or another season of the same lanes and gameplay with some polish (New Summoners Rift)
You already know the answer to this. The meta will be enforced even harder, and if there even is a shred of interesting gameplay that comes out of the (stupid) jungle changes, it will be crushed immediately so Lee Sin can come out on top again.
The problem here is that Riot is incompetent and too stubborn to learn from literally any other game or admit when they're wrong, let alone actually do anything about it.