With the berserker type AI from BI. ( fire and forget ) The new feature of units gaining or losing momentum while in melee. ( less predictable out come of battles ) Flanks gaurded by terrain, battle map features. ( much harder to flank ) Not to mention, made in Australia.
One thing is for sure. That is we are all goin to be in for a nice surprise, battles and the battle AI will be like nothing ever seen before in a TW game.

-IceTorque