So everything happens in this scene
https://www.youtube.com/watch?v=nC9uTYkzJDY
Master Xehanort says:
0:45 --> Out with the old and brittle VESSEL, and in with a younger, stronger new one.
0:57 --> I swore I would survive... and be there to see what awaited beyond the Keyblade War!
So! in the first sentence his talking about a vessel! So this isn't his own body! It's just a body he used to carry him! So the Xehanort we know, may be good!
Secondly! at 0:57 he is saying what I wrote above! And in the Chess game KH3 trailer we can hear him talk to Eraqus and talk about the master's favorite story about the lost Masters (probably the foretellers), so the chess game takes place after the Keyblade War. So he is from an era after the Keyblade War.
In the KH3 opening we also see him with silver eyes instead of amber eyes!
So with all of this, I think he is possessed by the Master of Master or Luxu from KH Back Cover. Or maybe by the unknown traitor of the X saga.
https://www.youtube.com/watch?v=nC9uTYkzJDY
Master Xehanort says:
0:45 --> Out with the old and brittle VESSEL, and in with a younger, stronger new one.
0:57 --> I swore I would survive... and be there to see what awaited beyond the Keyblade War!
So! in the first sentence his talking about a vessel! So this isn't his own body! It's just a body he used to carry him! So the Xehanort we know, may be good!
Secondly! at 0:57 he is saying what I wrote above! And in the Chess game KH3 trailer we can hear him talk to Eraqus and talk about the master's favorite story about the lost Masters (probably the foretellers), so the chess game takes place after the Keyblade War. So he is from an era after the Keyblade War.
In the KH3 opening we also see him with silver eyes instead of amber eyes!
So with all of this, I think he is possessed by the Master of Master or Luxu from KH Back Cover. Or maybe by the unknown traitor of the X saga.