It took forever to get Mega Man 11 made, but it got made regardless. So who knows
Honestly, I think Mega Man should go open world Breath of the Wild style.
This may sound weird, but remember that Mega Man revolutionized nonlinear gameplay, allowing players to choose the order they fight robot masters.
Mega Man X also had RPG elements by having health, armor, and weapon upgrades hidden in the various levels.
Battle Network experimented with isometric open worlds.
And Legends... well, it was 3D, so they could expand upon that formula.
So if you fuse these all into one, you get a Breath of the Wild style game. Imagine having a futuristic open world with eight distinct areas with Robot Masters causing havock and the player having to stop them, rewarding them with new weapons that can be used to unlock new levels in the overworld (such as an electric grapple beam or a bomb that destroys barriers that block off new areas).
Add in the RPG elements of X to level up health and armor (just like Breath of the Wild).
That's my dream Mega Man. Lol.