I just knew the moment Lucy was breaking Desmond out of Astbergo (sp?) that the end would have the action finally spill into the present day. Never did I know they would give us a tease of ACIII in the epilogue. When the screen goes to black during the Minerva talk and Desmond goes, "What the
?" I thought that was a fantastic way to end ACII, albeit not what I wanted. They went above and beyond with that tease. I wonder what the present day Assassins wear in the field...?
Anyway, yeah, I noticed the same thing about Desmond's fighting. Too early to tell, but depending on how dark they go, I think ACIII (or the rest of the series) may end up concerning Desmond's stance on the Assassins. During the convos with Shawn out of the Animus, they discuss how good Assassin's really are, further foregrounded by Altair's thoughts in the codex about where they stand in everything. It's something very small to deduce something so big on, but I feel like Desmond might grow to enjoy killing? Kind of hope so.
Also, if Altair showed up in ACII, it may be safe to say Ezio's fate will be cleared up in III. Who do you think he ended up shtuping to make Desmond's ancestors?