Four years isn't an extraordinary gap, they say.
A Capcom employee has recently defended the current lack of Mega Man games in a post on Capcom's official message boards.
An employee by the name of GregaMan commented that, "Four years is certainly a large gap for Mega Man, which has some 129 titles to its name spanning just 25 years, but not an extraordinarily large gap for your average IP."
He continued, saying "Even without a recent title, Mega Man has a constant presence, be it in our news reel, the Japanese investor relations site, the frequently updated Rockman Unity blog in Japan, or with frequent rereleases in the digital space."
The last Mega Man title, Mega Man 10, was released in March of 2010. Keiji Inafune, creator of the series, left in October of that year and all Mega Man games following his departure were cancelled.