Please keep in mind that this is, for the most part, just rumors.
Youtuber Jake Jakers recently released a video (credit for highlighting this goes to EventHubs) talking about several fighters that were considered for UMvC3, but ultimately got cut.
It is known fact that some of these fighters were worked on at certain points, but some others were only rumored to have been considered. Much of the video appears to be based on a Reddit post from a few years ago that talks about what happened with many of these situations.
Any thoughts?