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