My first impressions of Bellamy is that he seems to be A LOT smarter and calm than he was two years ago, I'm not sure when he lost his crew. Did DonQ kill them? Did they die on the way to sky island or did they die there?
Is also weird to see bellamy so "reasonable" i hope we get to see him more wild and crazy again during the tournament.
Orther questions i hope to get answered is why he have admired DonQ since he was a kid, how did he get his new bounty so high now that he is "alone". One of the reasons why Luffys bounty is so high is because he is the leader of a powerful crew and is therefore a bigger thread while we have bellamy that is alone until/if he joins DonQ.