Nope its not Mega Man Network Battle but something better! Tho most information is still limited. Its confirmed that they will be releasing an online version, It is currently under development by Neowiz Games
The same guys who made Fifa Online this game has been announced to be released in Japan as of now and nowhere else. A bit of information was said that the game would not be 3-D but a 2-D side scroller. Lets just hope its not another Ghouls N Ghosts Online failure that was never released. Only a few months since the announcement well have to see what comes out of this project.