So we got Goku, Vegeta, Piccolo, Vegito, and soon even Bardock (thanks Doctor Flux!). All that's missing is Gohan. Having similar moves to his father, I see him working over Ryu, as Goku is over Ryu. Also Gohan and Ryu have the same voice actor so it's a perfect fit. I haven't tried modding (I'll try it eventually), so I decided to throw this request out there. I saw there was a Brawl mod of Gohan. Maybe a model import?
Anyway, if you decide to make him, that's great! If not, hey it's totally fine. Just throwing it out there. :)