Resulta que Capcom no se había chafado su gran anuncio para el Evo, sino que había sido culpa de Valve:
Dear Street Fighter V Fans,
On Wednesday of this week there was a mix-up in the publishing process at Valve that caused a trailer to go live on Steam ahead of schedule. The trailer includes the major reveal of Poison, Lucia, and E. Honda as characters joining the fighter roster.
It’s a regrettable and unintentional situation, and we have already implemented measures to prevent this error from happening again. We are fans of Street Fighter ourselves and we’re sorry for the error.