Speaking as a big fan of both Grimlock and the Dinobots in numerous iterations, I gotta say: I'm cool with that. WELCOME TO MOVIE CONTINUITY, CHITLINS! It's not G1, BW, Unicron Trilogy, or Animated. It's a separate entity, capable of having its own universe that's not constantly pandering to that which came before it. The Dinobots could be an awesome addition as a commando unit for the Autobots, sure. But this is Bay's personal sandbox universe. Sure, if Hasbro deigns it so, he's gotta man up and put Grimmy and the gang in, but until word from the big H comes down, he can do whatever he likes, use whatever characters he wants, and play them how he wants. And you know what? It's still an entertaining ride. Because no matter how many people decry how 'dumb' or 'gayzorz' he is for not including, or even liking, as someone else said earlier, 'all of our Sacred Cows,' so many more still go to the theater, pay the $10+ to see the flick, maybe come back for more, invest more money than they should into the toys, and basically make it a marketing success. Bay's allowed to hate whoever he wants, because it's not YOUR Transformers. If one of YOU were making the movie, then you could put Grimlock in and publicly voice your hate of some other character, like Bumblebee, Prowl, Wreck-Gar, Cyclonus, who the hell ever. But you're not. So simmer down. And if he does include them after all, and this is some misinformation come early, he'll make them work under his own terms. Which means, if anything, they'd be closer to the Dynobots. Either way, everyone just needs to chill.