Killer Instinct to have smaller roster of characters, content will be released at steady cadence and new characters may be added with player interest
I'm not even getting KI and I'll tell you to crap on it just because it won't have a huge roster from the get go is asinine especially considering that the series only has 15 characters, 13 if you don't count the bosses.

Ono hints at another fighting game possibly in the works, SF4 update announcements pegged for EVO 2013 and San Diego Comic-Con
If the rumors are true about Microsoft paying people off to not show certain multi-plat/PS4 games at E3 than for SDCC we'll be seeing MvC4 and Darkstalkers Reborn at EVO.

Classic fighting game characters re-imagined as females
Remmy is still a toolbag.