Welcome to the forums! This game is going to SO kick azz!
I think it is going to very much be its own game, but will have, hopefully, some ideas taken from Age of Wonders, Master of Magic, and tactical combat is said to be somewhat like X-COM with magic.
You are so lucky to just be finding out about it just a few weeks from beta starting - some of us have been anticipating and dying for this game for MONTHS!