Yes, it’s an impressive new feature, only the question is, how usuable it will be outside of ZB 4.
When you export that dog-fur as a poly-mesh, then good night. 
Don’t get me wrong, I appreciate all new ideas of the pixo-team, they are really creative and of coarse, the updates are still free, very generous.
But let me remind that all people who use ZB not only for demos, prototypes, illustration etc. like nezumi mentioned above, would rather like to have the really necessary things for the daily work really working than all the nice and stunning gizmos of the next update that in the end almost nobody can use outside of ZB (And who beside a hobbyist use ZB alone ?).
Dynamesh is f.e. one of the most usefull and best additions pixo made for ZB within the last years. It’s fun to work with and it is usefull in the daily work, but it has still a lot of limitations and it is not easy to use a highly detailed Dynamesh outside of ZB in our main render-apps. There are problems with the texture transfer when you prepare the mesh for export-use , like decimate it or retopo (what is still a pure horror with ZBrush) etc.
And Topo-rigging is skipped at all since R2.
So, what would I personally like to have in a new update ?
- A further evolved Dynamesh with better features for export-use, for high-detail modeling (f.e. a slider to enlarge the modelling cage over the 1024x1024 pixel-border when you have the hardware-power) etc.
- A working retopo (I use 3D-Coat for that).
- Since we have hard-surface-modelling, a better Canvas for a precise modelling and adjusting would be urgently needed (like the 4-view’s in C4d, Max, maya etc.)
- a more evolved texture/polypaint function. We still have no texture layers.
- a further evolved UV-features. The one that is implemented since a while is very basic.
- Better than UV a UV-free texture system that gets rid of all that boring texture-distorsions (I mean a system that doesn’t need to convert polypaint into UV-texture when I use it in my main App C4d)
And a lot more.
We already have all these necessary and needfull features since months or years in ZB, but not in a way they really should work as expected.
So, forgive me when my excitement about a primitive hair feature (although it’s nice, indeed) will stay within limited borders when on the other side daily and urgently needed features still not work as they should.