I have played Roshutsu and I am really impressed! The morning sun is amazing, the way the light touches the girl, the girl physics, the map, the time changing, the sounds... This game was made by a professional!
Yes, it is a small and not a full feature game (except the map, which in my opinion is incredible), but everything has an imense quality and I believe the developer was very intelligent to limit the features to acomplish the best quality possible, that's the way I like it. I played Roxanne, a Steam game with a similar theme and it is very clumsy, with lots of bugs, clearly not made by Jaguar.
Probably Jaguar has a high technical expertise and is also very intelligent, so I would't be surprised he would be working on a full time job on something big and he doesn't have time for Roshutsu.
Anyway, if you (Jaguar) decide to keep this game updated and to not overwhelm you, I would suggest to make a minimal update each time, and probably you can have our support.
There are other games, sure, but your game has a soul.