Jon Murphy just announced we will get the first PES 2012 news soon. In twitter, he wrote:
Seabass will explain more soon. I'll Tweet a few times before then, but can't give too much away!Additionally, he talked about a early version of the game he played and apperently he was amazed by the way the AI has been improved since PES 2011:
In the meantime, I've just got new PES2012 code. Awesome, awesome gameplay. AI fantastic. More soon...
Believe me the AI is great in all areas. Real progress all over the pitch.