I've played a bit more.
I must say that the AI is awesome in this game. You can play the Undead and the Elven faction in the demo. I've played a skirmish with 3 AIs. I teamed up with one. I was playing undead, just like my AI teammate. The 2 enemy AIs were with the Elves. Our asses were kicked badly. One of the AI players attacked with a huge force. I am not kidding the AI moved like 200 elvish archers, unicorn, griffins and other troops to my base in the
same time. It seems that the AI is only attacking when its recruited huge amount of troops. My AI teammate was also owned by the other AI player.
I gotta play more with the Undead, becuase I've made lot of mistakes, even my AI teammte did much better then me
The MP will be also awesome. RTS fans must buy this. I've just pre-ordered the game in this minute.