During the dark eight-year period between Mega Man 10 and Mega Man 11, the franchise went through a series of cancellations. Maverick Hunter, Mega Man Universe, Legends 3, and Mega Man Online have been the only ones made public so far. We’ve now learned of another potential title that was cancelled behind the scenes.
That game was Mega Man Star Force 4, a proper sequel set within the Star Force franchise.
Source: Destructoid Capcom was working on a Mega Man Star Force 4 at one point