According to a CVG preview earlier this week, Leonard Nimoy will not be reprising his role. They said that he did BBS, but will not be in KH3D as Master Xehanort at all. There is no English voice yet from what I've heard. This is bad news for some, and I really want him to come back, even though he said it was his final role, sadly he didn't mean final character role. It is not definite yet if he will not be reprising his role, but for now it is certain that he hasn't yet.

 

SOURCES:

http://s1078.photobucket.com/albums/w490/Zak1403/?action=view&current=40bda053.jpg&evt=user_media_share

http://s1078.photobucket.com/albums/w490/Zak1403/?action=view&current=40bda053.jpg&evt=user_media_share#!oZZ5QQcurrentZZhttp%3A%2F%2Fs1078.photobucket.com%2Falbums%2Fw490%2FZak1403%2F%3Faction%3Dview%26current%3D3d08ce74.jpg

 

Taken from Nintendo Gamer, all credit goes to Zak1403, Nintendo Gamer, and its creators CVG.

and once again, we'll always criticise the new voice actor saying that he's worse that the old.

Aww..but leonard nimoy did such a good job as MX, granted he's the only one that ever voiced MX but anyways if its true I hope the new VA does Xehanort's character justice

Oh NO!!! Well, he's getting old and he can't do it forever. He was such a great fit for Master Xehanort, I can't even imagine anyone else doing his voice. Hopefully he'll have a change of heart, but if not, I hope the new voice actor is really good at imitating Nemoy's voice (kinda like Mickey's new VA, although I can still tell it's a different voice).

Man, I will miss him! Hopefully, Xehanort's voice won't change much.

i wonder will the next voiceactor try to mimic Nimoys voice for master xehanort or will they change the voice completely?

This explains why the English version is being delayed D:

Wonder who's gonna voice him next?

Now who's going to do the voice of MX?!

Awww...