Personally I don't see anymore changes coming. The beta ends in a few days if Diablo 3 is an indicator so we might get 1 new build tops.
I don't think there will be anything in it except bug fixes and minor tweaks but it really looks like Blizzard is fine with the current state of the spec/class which is kinda set when you look at the MASSIVE amount of Windwalker feedback as well as the negative feedback to the energy regen/stagger nerf.