It will sell, it doesn't need the likes of Justin Wong, FChamp or Twitch celebrities. Once they see those prize pools they will jump on board and fall in line. Those guys might have wanted 3v3, touch of death combos, etc but for Joe Schmoe it's way too much, especially for a brand that is so global/mainstream. It simply has to be accessible and easy to follow.
I really like what I see from the trailer, but this is as someone who didn't enjoy the VS series after MvC(1). My only issue here is that the characters look way too stiff, Ryu has some last-gen animation going on. Maybe even 2 gens back.