I apologize beforehand if this has been posted anywhere in the forum(I haven't seen a thread about it,if there is,please lock this one),but I accidentally found this video.

http://www.youtube.com/watch?v=PFVrSGlWy2M
(Sorry,can't make it clickable)

Well,considering Batman Arkham City Lockdown was done by Netherrealm Studios,this shouldn't surprise anyone,but I think it is sweet that MK characters are appearing in other franchises as well,especially as popular as Batman. And it kinda reminded me MK vs DC game.

Admin Edit: See also; official newsthread. -M.