Interesting well thought out ideas. Would love to see the return of the paragon class. Not sure if I agree that mounts are needed.
Also, on the discussion of races, my hopes are seeing that Dwarves are most likely not going to make a come back, I hope that Kodan are considered as a potential race. They are an ancient race which the Norn are said to be descended from, there sanctuaries have been scattered by Jormag, and they have an interesting and deep culture/rule/religion; therefore, in my personal opinion they would be an interesting race to delve into and discover more about.