Tatsunoko VS Capcom ~ Cross Generation Of Heroes
There's an article on it in Famitsu magazine, both in print and online! Here's the online version of the magazine article: http://www.famitsu.com/game/news/1215298_1124.html
We can see Ken from Gatchaman, Shinzo Ningen Casshan, Ryu and Chun-Li fighting, in stages that seem to be based on Yatterman and Tron Bonne. And it looks incredible!
Apparently it comes out as an arcade machine at the end of this year, then may possibly be ported to a home console. ^_^