Yeah Bound doesn't belong in Tekken, and neither does anything from Tekken 4. It had the worst gameplay, worst soundtrack, worst everything out of all of them.
EDIT: Comic-Con Trailer
https://www.youtube.com/watch?v=QKBAmZEAxsw
Harada confirmations from Comic-Con:
-Characters will still speak in their native tongue when the game comes out.
-This is the final chapter of the Mishima saga.
-Lars is confirmed to return, as expected. What wasn't expected is that he will be getting an updated design from artist Ninnin, who worked on Duel Masters and Cardfight!! Vanguard.
-Two other artists were confirmed by name to be on board for creating new costumes: Mari Shimazaki (Bayonetta) and Yusuke Yuzaki (No More Heroes, Fire Emblem: Awakening). There are more artists on board who will be revealed later.