yeah, i would be, is a intersting concept, would like to see where it goes.
Well, I was thinking of working out the character concept itself together with my 'patron', so to speak, and then flashing out the details and description myself - of course with his/her approval before actually creating the hero.
So, I'd appreciate it if you'd send me your character's background and I'll see if I can come up with a fitting idea. 
I intend to come up with a new hero-character and to ease his integration in the role-playing part I'd like to somehow bind his origin to an existing hero.
Maybe he could have gained his powers by accident while he was saved by another hero (think Captain Marvel and Carol Danvers [Marvel Comics]), maybe he's a distant relative or even a love interest. Maybe he's an ex-villain redeemed by his long-time rival.
Anyone of the regular GG-players interested?