''Fox McCloud is now an official member of Smash Bros. Brawl's cast of characters.''
Hes always been a part of Smash Bros..... @.@ It would be a completely safe assumption to say that he will be in the new Smash Bros. To not include Fox in smash bros is like not including Ken, or Chun-li in Street Fighter...
Although, a good question is why they decided to change his overall character as you can see in the trailer, hes kinda jumpy compared to his Melee counterpart. Is he supposed to be the Fox from StarFox:Command? And will it be possible to play the original Melee version?