Man Ed Boon does not seem as happy in these videos as he did when he was talking about MK last time around... I hope they have not been pushed into this. It just sucks when a CD is not passionate about the product.
Personally as a huge comic book and huge fighting game fan I am confused as to why this doesn't excite me at all.
Remember, in order to keep that DC license they probably are required to do something with it on a regular basis ( see: Activision/Spider-Man). Its been four years since MK vs DC.