The King of Iron Fist Tournament 2015 just concluded and post-awards show gave us the updated version of the game named Fated Retribution. By an unexpected revelation, Akuma from Street Fighter was revealed to be a new character addition to the game. Apparently, there's a relationship between Kazumi Mishima and Akuma and his inclusion is canon to the story line. Trailer also includes updated visuals and costumes for some of the characters. See the trailer for details.
Note: Tekken 7 console release date is stil unconfirmed so gotta hang in there for just a bit longer.
See
Tekken Official for hi-res images.
More new default costume and stages angles at
Tekken Facebook.
A.K Fan1234
At first I was like wtf.. Street figther, Tekken and Soul calibur, in the same universe! Oh boy it's gonna get messy now *_* First it's said that the devil is kazuya, then it's possesses jin, then it's revealed a gene, then it's hinted to be from Jinpachi, then it's said not be to from him, then Kazumi happens and now Akuma.
2015-12-14 19:16it's smart from an advertising standpoint, even maxillian is hype for tekken now (good publicity the franchise!) and let's face it, tekken needs all the people it can get right now.
Tenshimitsu
Maybe Yoshi will kill Akuma and regain control over his sword, that would be nice
But Namco loves the mishimas so much that it might be not likely to happen 
2015-12-13 18:52Yoshimattsu
Akuma might be Kazuya's dad huh? I'm really stoked for this, gonna mean big things for the community, and also serves well to get people excited for TxSF! Amazing trailer, and the global tournament was an amazing show as well!
2015-12-12 21:10