They weren't thinking of any consoles, period. SF is an arcade fighter series, and will always start out on an arcade.
I do think the Wii could handle this game as it is presented now. C'mon, the trailer looked awesome, but the in-game is a lot less spectacular. Doable for the Wii, in any case.
Of course, that's just my presumption
Anyhooo... Hurray for keeping our hopes up!