Raichu loses Elixir and Nuzzle Pikachu. I like the card, but it's pretty bad.
Anyway, we're moving into a format where consistency is a very important thing. Losing deck thinners like Sycamore, I think that players will start to play heavy counts of most, if not all of their trainers, and I wouldn't put it past people to play heavy Lele again like at release. Trashalanche is looking really good and Bulu/Malamar are looking awesome.
Buzzwole still has a lot going for it in terms of support, but I'm beginning to think it may end up falling off.
How? Buzzwole has Beast Ring and can still OHKO almost anything in the relevant game. Lucario loses Strong Energy and Regirock(which played a split with Diancie, so don't say that Diancie replaces this) and also can't utilise Beast Energy. Not to mention it's also weak to Psychic.
I think between Acro Bike, playing heavy counts of draw support, and having Tate and Liza to "replace" Float Stones(because it has the option of both draw support, and resetting Knuckle Impact), Buzzwole will either be good/semi-dominant or shrivel up and die.
Also, a little word of advice everyone seems to forget, Instruct Oranguru is still around. Just sayin'.