Until we have something more substantial to go on (and I tend to believe that it will be coming sooner than later) here's something ya might wanna check out: Music from the Transformers Trilogy!
Performed by London Music Works, this CD includes 16 tracks from the three movies: six tracks each for Transformers and Transformers: Revenge of the Fallen, and four tracks from Transformers: Dark of the Moon. Some great stuff here (though I'm a bit disappointed that "Decepticons" from the first movie didn't make the cut). I don't own this yet but based on the samples on the Amazon.com page this is an amazing composition and definitely well worth investing in! I was especially impressed with the recording of "Arrival to Earth" (a track so beautiful that it has been used at weddings!). It's currently going for $14.08 at Amazon and I'm certainly ordering a copy right now :-)
And if you're feelin' lucky punk, ScoreKeeper at Ain't It Cool News is giving away five copies of this sweet album! Deadline for the contest is this coming Sunday, so click on the link and give it a try :-)