Well, E3 is coming up. I doubt they will talk about all stars there. But if they do, and if they them liscened (Activison and Sony have been getting close lately with Destiny) this is a great opportunity for them to do so. But hey we should expect the unexpected! No one expected them on wonderbook last year. XD
Totally understand sega. I actually just finished all my classes so I know where you coming from. Hope your letter is coming along well! Lemme know if there's anymore I can do to help. And as far as the e3 things goes that's what I'm hoping for. Or also when this most reason season ends. They tend to pop some info out around those times.
You just gotta think dude, unfortunately dbz characters aren't "video game" characters so it's unlikely they'd ever be in psa or even smash cuz I know people ask for them in there too. I think it'd be kinda cool but it's pretty much guaranteed it won't happen. Sorry man :/