I want to see:
- maskless Sub-Zero, but maybe with MK4 Sub-Zero's costume.
- a different version of Dark Raiden.
- Liu Kang with burn scars from MK9.
- Tremor (if he's in) with an Arab kind of look (not ninja).
- Hellfire Scorpion, similar to Scorpion in Shaolin Monks (the 2nd time you fight him), with added flames engulfing his costume.
As for mastering a character, that's fine, but I hope that they don't do the whole 24 hour thing.
I hope that they can cut it down to like 12 hours, so that I don't have to worry about burning out my system.
12 hours is still a lot of time with a character (IMO), considering that matches don't last that long.