Rift is still alot of fun we are still quite active guild on rift. There are still people you will remember from when you played and alot of friendly people you can meet. just nothing to do for most of us atm as the xpack is so close.
I would say it would be a good time to come bck to rift as you will be on the same level as everyone as everyone will be getting new gear anyways. No idea what wows like as i havent been on it for years.