The updates are usually two weeks apart, but the next update is delayed because I'm working on some large quality/polish changes that are taking much longer to sort out. I'm hoping that the update will be out next week, but it might have to be pushed back one or two more weeks. Fingers crossed! :)
Main story is going to be three acts and an epilogue, and two sequels to the game are planned and in a (very) rough drafting stage.