Well V4 has been out for a few months now and once again, like it's predecessors has proved to be a huge success.
The popularity of a theme is reflected in the number of posts in its forum.
I think "Versatility" has become an RT icon. I know some people like to think they are getting a brand new theme, but each version of Versatility has been.
I would like to see Versatility updated every 6 months or so with all the latest and greatest goodies like the new Fusion Menu.
Versatility will always be hugely popular, and bi-annual updates make complete sense.