i myself am a big fan of shao khan. shao was a hand full as the boss in mk 2 & 3, from what i've seen the dragon king is shapping up to be really brutal. only one of his moves have been shown and it looks bone shattering. please express your oppinions or if you'd like share your fatality ideas for the king.
I don't think he needs one he is just too powerful but if he did he would probably throw the person in the air and then he would fly up really fast and impale them with his horns.
i think he'd just grab the opp. head with both hands, lift him or her off the ground, and after a couple of sec. the dragon king smashes and squeezes the opp. head like a peeled orange.