The rules can be found here
The game is far more basic than what we are use to with 8th edition,with a regiment styled organisation instead of model, and far less customisation, but it is also streamlined and less ambiguous.
There are currently 9 army lists released which can be found on this page
Mantic has the timing sorted, however I am not so sure it is a replacement for 8th edition, as the customisation is not there, nor some of the complexity
