Some quick ideas on the spoilers:
1) Yamato's fruit sounds quite boring and I actually fail to see it looking enough like a wolf.
2) Robin praising Sanji's ask for help while stating Maria wouldn't understand was quite expectable yet funny considering how dumb some Zoro fans here are, who spent chapter after chapter mocking the cook for that moment (even though it was beautiful for anyone without an intoxicated mind).
3) I hope Brook gets to do something more than fighting a weapon with a SMILE that needs to be explained better. He could have some interesting combos with Robin if Oda gets a bit creative, which sadly hasn't in a while (Jinbe versus Who's Who and Franky versus Sasaki were uninspired so far).
4) Caribou legit is who I'm more intrigued about right now.