GameInformer held an interview with Ed Boon; the game designer of Mortal Combat series. Currently the new title in the Kombat series is Mortal Kombat: Armageddon that will hit the Nintendo's Wii platform in April, 2007.

The game designer talking to the interviewer informed that the next sequel i.e. Mortal Kombat VIII is also in pipeline that will also support Wii platform. The version will be inheriting some of the properties from its predecessor MK: Armageddon. The innovative thing about the imminent title is its support to Unreal Engine 3.
The Unreal Engine will help boost the quality of ingame content like way to display the character, normal mapping, shadows etc.
For the compatibility of the game supporting Unreal Engine 3, Epic will have to mortify the version that be applicable on Wii.

Via: gamersreports