Yea I think there will be a v4 one day. Unless Erik learned a lot of lessons from v3 it will not be a good program. The root cause of v3 is that it was designed to do a lot of fancy tricks and flashy computer functions.
At a future date there will be more fancy technical functions in the computer world. If Erik wants a program to display them, v4 will be another flop. If he decides to make a program FOR chess players who just want to play chess and keep it simple, v4 will be good.
Will there ever be a V4?