This arc is nothing less than rediculous. Yeah, I signed up for this site just because i'm way too excited not to make a few predictions.
I'm expecting something awesome from Koby in this arc.
I think WB might freak out - maybe make some noise and take out a few of the Marine commanders or those Kuma-bots - but I think they're going to let him die at the end of this.
With White Beard's death, it opens the door for Ace to join the Straw Hats. If Jimbea survives, i'd love to see he might also join, but that would be too crowded too fast.
This arc is missing Shanks… hard. Even more than it is missing Dragon, it is missing Shanks. Is it humanly possible that either of them wouldn't know about what was going on? The last time we saw Shanks he was talking to White Beard (and fighting him, which was never really finished) about Ace.
Having Mihawk there fighting with the pirates is also troubling. When is Zoro going to get that rematch?
Does anyone doubt that this arc ends with them meeting up at the pier where Kuma ported them all - and they get their (new) ship and just keep going to that underwater island?