A Toys R Us memo leaked on Twitter, telling us that either Hasbro is planning to unrelatedly push Dinobots to tie in to the movie's release, or that they're the main part of the movie line.
For those interested in the Dinobots in Transformers 4, here is more evidence (dating to May). pic.twitter.com/IblVbMOVHz— Chris P. (@demoncarnotaur) August 25, 2013
Since nobody goes to these things for the story, the best hope we have is for cool visuals. Dinobots seem like the best hope - though I suspect the real reason they're in it is because Michael Bay identifies with Grimlock...
via Rob at i09