I like the idea of putting fantasy characters such as sorcerers as well, but we would really need to get rid of their projectile attacks. We don't want a DBZ game. The posibilities of weaponry are countles. Something like a Trident (or any weapon of your choice) that can enable you to open "black holes" or "portals" in certain directions (left, right, back, forward) after each attack, which would result in making your attacks safe if blocked (like Ein) but if the wrong portal is summoned, then you are left at disadvantage. Ex: let's say 66B stab is -25 on GRD but I predict you will step forward so I follow it up with a portal opened forward, making my 66B -2 on GRD or so. If you can't picture it well, just think of a mini 15-frame Dormmamu black hole after your attack, as opposed to Ein.
I was also discussing with a friend about Dopplegangers. That is something we've never seen in SCV... or in any game for that matter... not that i know of actually, except for like Kenshi in MK. But the possibility of having your double (either your spirit form or your clone or something else that comes out from within your character) come out and finish the combo for you... THAT would be flashy. I'm not saying something like Kenshi from MK, he's too OP. But something like this: "A" launcher hits, you can combo with B > C > D > E+F during which E+F will be the move where your "spirit" or such comes out and finishes the combo for you.
Just some ideas I've had, but I doubt they are do-able in a gam such as SCV... then again, they did make Viola and Zwei....