Wow, I was expecting a Majin Buu story mode, but those would've been towards the bottom of my list of who gets a story mode (then again, was Brolly really on anyone's list for Budokai 3?). Thank god we can finally act out the Bardock special! Now all we need is to have Future Trunks play out the Trunks special (and a surprise appearace of the Tori-bot

) and I can call this the best DBZ game ever.
Edit: Look at this "
Hand's On" preview. It says 15 characters for the story mode. Heres what I can guess:
1. Son Goku
2. Teen Son Gohan
3. Adult Son Gohan
4. Son Goten
5. Future Trunks
6. Vegeta
7. Bardock
8. Raditz
9. Freeza
10. Nappa
11. Kid Trunks
12.Krillin
13. Piccolo
That's what I'm pretty sure they'll have. And here's some possible storylines:
Baby, 17 or 18, Omega Shenron, Cell, Majin Buu (here's to using all forms in a story mode

.), Mister Satan (heh

) and Kid Son Goku (there's your Dragonball story mode right there!

(well, they do have Taopaipai, Master Roshi (you know Jackie Chun will probably be announced as an alt. costume soon) and possibly Piccolo Daimou if we're lucky.)).
Edt 2: Added Krillin and Piccolo to the most likely list. That leaves two more. Heres to a Majin Buu story and a Kid Son Goku story

I also go by "veemonjosh".