Personally, I think that R will be replaced sometime w/ in 18 months. There are new
fireworks effects that could easily be put into a new show that simply can't work very well
F! on the other hand is still pretty good (but really needs an update; it has been updated
in the past, but that seems like a while ago... I can't think of any changes lately).
So maybe that means that maybe it's time to do a completely new one. *shrug*