Mega Man successor Mighty No. 9 has been delayed until early 2016
Not so mighty, then

Comcept has announced that the release date for its action-platformer Mighty No. 9 has been pushed back.
Instead of coming out this September, the studio is aiming to get the game out in the first quarter of 2016. The grand plan is to bring it to 3DS, PS Vita, as well as consoles and PC.
The news of delay was revealed in the game's backer-only forums. The reason for it was said to be due to "bugs and issues pertaining to the online features that are included in the game."
Apparently, Comcept will make a public announcement at Gamescom but wanted to let its backers know first.
Comcept also noted that it has only received around half of the responses it needs to a "platform survey" it sent around.
The studio plans to send another platform survey around to get more responses once the game's release date has been confirmed.
Mighty No. 9 was Kickstarted back in 2013 and is Keiji Inafune's spiritual successor to his Mega Man games.
NeoGAF