According to Ubisoft, Project U is "a new concept of session-based co-op shooter, where many players unite to prevail against an overwhelming threat!". The registration for testing has already started and the first version will be in English only. What could be the setup of the game? It could be based on Ubisoft's map based gameplay where the player has to take down a series of AI bosses before he gets to the final big boss. We only have to wait and see.
PS. Could the anime like characters depicted on the page indicate the look and feel of the game?!