Unfortunately, there will not be an estimated date until I get back to working on the game regularly, which will take a while, what with another exam on the horizon. Once we've made significant progress, we'll post a devlog about it.
As for resetting saves, I don't really see the point. You can always start a new game from the main menu, and you can delete old saves or overwrite them. There's not much to reset the whole game over, save for the main menu image change and progress in the gallery.