According to Keiji Inafune, Mighty No. 9 will finally be releasing June 21st in North America and Asia and worldwide three days later on June 24th.
In a statement from Inafune himself:
“Firstly, I would like to say again how sincerely sorry we are for how long we have kept all of our fans waiting. We are finally able to deliver some long awaited news regarding Mighty No. 9. We have now confirmed the following release dates for Mighty No. 9: June 21st 2016 (North America & Asia) and June 24th 2016 (World Wide). We understand that as a result of the various delays we have disappointed and let down our fans, but we are happy to finally be able to deliver the game to everyone who brought us this far.”
Portable versions of Mighty No. 9 will be released on PS Vita and 3DS at a later date.
Read the official message from Inafune here.