https://www.engadget.com/2014/08/15/ika ... r-ubusana/
http://www.pushsquare.com/games/ps4/ubusana/news

I know that he left Treasure for M2. Honestly, if he had stayed at Treasure, there probably would have been even LESS of a chance of this ever coming out. But remember everyone's initial response to the silence on Raiden V when it was announced for the Xbox One?
Anyways, anyone expecting anything? Like an Ikaruga spiritual successor? I am assuming Treasure still owns the Ikaruga name and contents within.