Microsoft has announced brand new first party IP, Recore.
It's being developed by Mega Man creator Keiji Inafune and his studio Comcept, alongside the 'developer that made the Metroid Prime trilogy', presumably Retro Studios.
It's set for a Spring 2016 release.
Recore is a shooter where players appear to control a female character, who works alongside a robot-orb contraption. It seems to be able to take multiple forms, including giant mech and dog.