Had a chance to put in a few hours in it over the past few days. Definitely feels like a brand new game. A lot less zergy and a lot less tedious. The military part has been completely redone. The battle themselves are still the same, but the planning, recruitment, etc. needs to have a lot more thought put into it than just "build 5 stacks of 20k each"
The research trees also add another layer of planning and strategy and now you need to hit certain techs to unlock certain features. E.g. you cant build more than 1 army until you research a tech that needs like 9 prerequisites.
New UI looks really nice