I don't have any new fighters I'm looking try but retro ones I hope to try include:

Street Fighter The Movie The Game (Despite knowing MANY people who run those tournies/play competively, I've never played it)

Battle Arena Toshinden (I figured out how to emulate PSX so that's a big must)

KOF Nest Saga and 2003.

I can't think of any else at the moment but they are probably PSX exclusive ones or stuff on MAME that I want to try. Maybe more.