It would be cool. Theres too many light and fluffly fighting games, need more gore to counter it.
...except Rare is too busy being man-handled into making kid friendly Kinect games that nobody cares about, and half their real talent have left to form/join other companies.
Somebody's probably going to have to dish out the cash to buy rights to the IP, but I don't know if that would ever happen unless MK10 becomes as popular as COD and everyone wants to rip it off again like they did in the 90's. So it certainly is a possibility....