Another abandoned game, maaaannn come on
Well, he did say in the latest update that he'd have to redo the project from the ground up with another engine.
It doesn't look to me like there's a whole lot of game, so if they wanted to, they could do that, and it would be a lot better to do now.Maybe Godot, Maybe RPG Maker, Maybe something else. Start with the game you want to make and work backwards from there.