Golden Axe would be great but I actually have 2 ideas:
Sonic. Totally redrawn and with the same old physics. I love what they did on Wonder Boy so they know platforming well even if it was just a reskin.
But what i would REALLY love to see is a Streets of Rage Fighting game. The cast is there. They are charismatic. Movesets are great. I would be all over a 1v1 fighter.
Also... add one more idea. A brand new Kid Chameleon
Streets of Rage 4 has a versus mode that is sort of like a fighting game, I think (haven't tried it yet). So if it's going to be a fighting game, I think at this point I'd prefer something like a Fighter's Megamix 2 with characters from Virtua Fighter, Fighting Vipers, Streets of Rage, Shinobi, Golden Axe, Eternal Champions, Last Bronx, Shenmue, Yakuza, etc.
If it's going to be more like Smash Bros., then I guess you can include Kid Chameleon, Virtual On, Vectorman, Altered Beast, ESWAT, Ristar, NiGHTS, Comix Zone, Astal, Phantasy Star, Burning Rangers, Shining Force, Space Harrier, Clockwork Knight, Jet Set Radio, etc. as well. WITH stages from each respective game, please. Thank you. -_-