Here is a video confirming the official team list for PES 2012.
The video includes emblems and grades for every team, including the newly introduced Portuguese league and this year's updated Copa Libertadores teams.
There are two 'fake' leagues in PES 2012. The PES League and D2-League will include 18 teams each.
WE United and PES can be found in the D2-League.
Massive thanks to prorevo for posting the video on their blog.