I don't know if this news made it over here as I've just come back from Orlando, but while I was there it was announced that Universal Studios was building a Transformers ride in one of its theme parks - either Island of Adventure or Universal Studios. I spoke to a guy at the park about it and he said it was very hush hush, and no decision on where it would be situated or when it would be finished had been made yet. It probably won't be in Island of Adventure though as they have the Harry Potter ride, and that makes that park more popular than the other one - so I imagine they'll need some balance.
At the same time, Disney announced an Avatar ride - which will be situated in Animal Kingdom and won't be ready until about 2016 - seems ages off, but I guess these things take a while. Also gives us an idea on a Transformers ETA.