
I thought they start showing up about a month after the game is released with about 1 pack per month.
I know Pac-Man and BBAMM arrive 1 week after the game is released for the PS3.
Went back to find the post about all the stuff that was leaked and yeup Capcom did change their plans for the character DLC. Originally they were planning for 1 pack per month which would have lead up to the Vita release. Either they changed it after realizing those Vita exclusive's were not really exclusives or the backlash about that made them rethink the character packs.