They shown R. Mika at PAX, they had Vega at Gamescon, they released both Charlie and M. bison via trailers. Necalli was revealed at Evo and the crowd was not hyped. Ken did hit home at San Diego Comic Con. Rashid at Dubai and Karin at TGS were shots at pleasing the home crowd.That guy isn't going to accept the bet, he was full of it. I think the fact SFV is going to be at NYCC makes Alex really likely, despite the leak. Like would they really show Gief or Sim there? Highly doubt it.
That capcom actually revealed characters that would appeal specific demographics and regions is a more happy conidience than not.
Also, capcom isn't going to put a character in or take a character out just so they can make the convention crowd happy. That is backwards thinking. You can only reveal the characters you did create.