Here's something random...
It looks like Ezio will be Soulcalibur V's guest character.
Since the 3rd game (that makes it Soul Calbiur II) the series always sported guest characters from Heiachi, Spawn, Link to Yoda, Darth Vader, Kratos (and some original manga artists designed ones and another one by comic book legend Todd McFarlane).
Though if this time we get Ezio, it will be the first that a guest character actually does fit the design and era is included as a bonus character!