I'd love to see Mario 3 and castelian in vr. Wonder if this could eventually support SNES games as the mode 7 stuff on that would be incredible (looking at you f zero).
Someone asked on Reddit and he replied that it could be done (on a technical level). He's not doing it, but technically, someone could do it. It's interesting that some of the more graphically intense NES games aren't in the initial release. I asked him if they would be coming in future updates, and he replied he's just not happy with how they look yet. But it's his plan to add some of the missing titles (like Mario 3, etc).
I think he does a whole lot of per game tweaking. And the more complex the tilesets get, the more complex it is for things to not become broken. That's really the bigger issue. And why I'm not sure SNES is ever going to happen from someone.