Well, I could have made a 10 page post with all of WR's features and planned features, but I don't think anyone would want to read that =P.
Anyway, you can get a good idea of what's planned and what's REALLY unique to WR, by checking out the
Development and Ideas section of the forums.
This includes things like combat styles, racial traits, zone name changes, AA changes, and a whole lot more.
Even with the recent influx of newbies, we could always use a lot more, and it is rumored that the flames of Tarhyl are about to rise up against the free peoples of Dalaya, trying to consume all that would stand in his way.
Well, we could use help with that.