I agree with this. Why bring a lame character like Karin back when there are tons of great characters that haven't been in SF for a while like Alex, Q, Sodom and Maki. As for a rekka character I would like them to bring back Feilong with some new moves, perhaps give him the 1 inch punch. Make it his V Skill it could send enemies flying back.
I would like the following
Feilong - Rekka playstyle
Maki - Running dash mix up playstyle
Haggar - Pure Grappler
Alex - Semi Grappler
Dhalsim - Keep away playstyle
Q - Charge mixup playstyle
Urien - Aegis trap playstyle
Sagat - Zoner playstyle
Basically we need variety in this game not just people's favourites.