"Fans aren't giving much support for Mega Man Legends 3" Capcom proclaims that, due to their behavior involving Legends 3 (supposedly). Cue Inafune's kickstarter for Mighty No.9, totally NOT Mega Man, reaching it's $900,000 with 29 days to spare, two days after it was actually announced.
Sadly, after all the controversy surrounding the game since then, the heartwarming effect is lost.
Even after it's been a few years since the cancellation, Inafune regrets that Mega Man Legends 3 was never finished and he still wishes to finish the product himself.
That said, the controversies may have soured some fans on the idea.