Given the recent revelation of Blackbeard's powers (something I did not see coming and am kind of miffed about) it brings up the thought of just what exactly we expect for future villains and characters in general. What I would like to know is what expectations do you have for characters we have seen or haven't seen but know exist (the two remaining Shichibukai come to mind).
As for me:
Jinbei: Despite the camp that wants Luffy to finish this guy off in one hit, I'm expecting him to be a total and complete powerhouse. I'd like to see him bear the title of 'Strongest Creature in all the Seas' or something like that just to build him up. The last time the Strawhats fought the gyojin (not counting Davy Back Fight participants)it gave us a set of pretty interesting battles, but nothing they couldn't handle (Luffy handed Arlong his serrated snout pretty easily near the end). Considering they are going to a place where they have the highest chance of seeing gyojin, I'm hoping this next set is much harder to handle then the latter, including Jinbei, who I could see being the first final villain it takes more than Luffy to take down (Yes I know the priest in Skypiea but that wasn't really as big).
Akainu: The coldest, most brutal bastard to ever sail the seven (or four in this case) seas. Kind of like the exact opposite of Aokiji; where Aokiji would just let the Strawhats leave despite his ability to stop them, Akainu would pursue them through Hell and back to see justice served. I'm also seeing him as strong as hell (given considering he's an admiral) but I'd like to think he doesn't a devil fruit. It would be a nice change of pace given recent events.