Entertainment Weekly also has an article about some new uncovered plot details for Transformers 3. The first part of the article:
The new Transformers: Dark of the Moon footage — screened for reporters yesterday at Paramount Studios — shows a giant, burrowing robot with city-block-length metallic tentacles wrapping itself around the middle of a skyscraper and crushing it like a beer can.
The bad news for Shia LaBeouf is he’s on one of the top floors of the now hourglass-shaped structure, which is beginning to tip. Optimus Prime and the other Autobots have given them cover fire, helping clear a path through the decimated city of Chicago, but Decepticons are prowling everywhere, far outnumbering them. The bad ‘bots deal with puny humans easily enough: they’re armed with weapons that neatly reduce the city’s fleeing population to piles of smoking bones.
The rest of the article can be found here: http://insidemovies.ew.com/2011/04/15/transformers-3-details-michael-bay/