It looks like Mighty No. 9 is slipping out of its September release date. Furthermore, it’s being pushed back into 2016. This news first started coming when retailers stopped listing it as a September release and switched it to a generic 2016 release.
This is even more unfortunate because, according to developer Keiji Inafune, the game was pretty much finished back in January of this year and they’ve only been working on porting it to other platforms since then. That said, Mighty No. 9 is still going to release on 10 platforms, so it would make sense that porting would take some time