lol well this is an interesting thread and TT i thnk your theory could hold some ground but in a different direction think about this for a sec if Ienzo was a keyblade bearer it wouldn't have been the keyblade of darkness cause king mickey had that one already and it wasn't the keyblade of light cause in my theory xehanort could have been the weilder of the keyblad eof light and the only one left is the twilight keyblade which it could be his but it's not see if you look closely at the secret video you can see the one who picked up that keyblade was a woman so Ienzo could have been a keyblade bearer or he could not have but if he was it wouldn't have been the three main ones
man that was a long one lol