Imagine if this is what Mega Man Legacy Collection actually was.
Also, imagine if this had a better title screen. (:
I'm completely and totally unfamiliar with the ins and outs of Mesen and other emulators and engines that, basically, slap stuff on top of what already exists. My sole experience, on that front, has been with Sonic the Hedgehog 3: Angel Island Revisited (aka "Sonic 3 AIR"). Back when I heard of that, I was unimpressed. Then I gave it a try and… I was very impressed! From what I can see here and in the original thread, I'm getting that same kind of vibe from this project.
This looks pretty neat and I think this would definitely appeal to people who liked how The Wily Wars looked, but didn't like how it played.