Seriously. Seeing the way Bee is looking at Optimus the genuine fear and shock. How his best friend and leader could be doing this. Damn it Bay. This better not be Ratchet all over again. I hope they dont kill him off just to set up his spin-off movie as a flash back or something.
They're not going to kill off Bumblebee. He's the poster boy of the whole franchise. Heck, the dude couldn't even get a scratch in the last three films. I'm amazed Optimus even managed to tear off some tiny pieces of Bee in this teaser. If Optimus actually does somehow manage to kill him, he'll be immediately resurrected, just like in TF Prime. Honestly, I find it far more likely they'll get rid of Optimus, and make Bumblebee leader, like in TF Prime and RID2015.