As an avid fighting gamer, I'd like to say that a good way to appeal to the community as a whole, would be to be the first fighter on ps4 with fight stick support.
From what I understand, the ps4 hardware can take a ps3 fight stick, as long as the devs of the specific game allow the device to be used in their game.
I for one know at least 6 people who would be willing to give a minimum of $20 each, to your kickstarter program, if they knew their fight sticks would be getting use on their new console.
Either way, I'm super excited about the kickstarter, and can't wait to donate and help fund this awesome looking game.
Keep it up, guys!