I think the problem is that the dev is already busy with the 3D NES version. But who knows what the future might hold. I think if we all re-buy the current one on Steam if released there might help funding a brighter future for the project :)
True..and of course 3DNES still needs work in a few ways. Apparently newer versions don't work in LaunchBox for some reason and the games need better 3dn files to where people don't lose interest in a game because of how messed up it looks on the first try without doing their own editing too.