I really don't know why I doubted Krillin's chances of getting onto the roster... I guess since he has always been a support character rather than one of the power houses, I thought he wouldn't be feasable, but this is a welcomed addition.
If I had to guess, I would probably guess that Krillin's support move could actually be something that could be more useful than other character assists. Perhaps something to distract or disrupt the opponent and making it easier for the on point character to get their hits in. Still, I hope we do get to see some nice team diversity where Krillin gets to be the best kind of help to any team he is apart of.
...
I just realized that we can now recreate the scene where Kriillin gets blown up by Frieza and have Goku rush in as a SSJ...
As for Piccolo, no shocks there. If anything, I would like to see if we might get another playable Namekian, or perhaps if this is a celebration of "All Things Dragonball" that we could also have King Piccolo as a playable character too.
Either way, a nice set of announcements and hopefully we'll see more very soon.
i need my 3 girls team, come on Videl, Chi-Chi, Lunch, Bulma
Honestly, Videl might be the only one to stand a chance on getting on the roster. The only other female characters that could make the roster too might be 18 and (if we really had to stretch the pool list of characters) Pan (to which some people might get upset that a reference to DBGT was made).