"Since we were approaching this as an origin story, we felt that it was appropriate that you got to hear his voice," di Bonaventura said of the character who thus far has only been able to communicate using existing media. "That’s the simple logic that we employed. The longer term implication of that is different. But the short-term implication of that is, since we really are resetting the mythology, essentially, of who Bumblebee is. And so, that seemed to us to be the appropriate, to get the chance to hear what he sounds like."
The voice actor in question will be Dylan O'Brien from Maze Runner and Teen Wolf. Here is what di Bonaventura had to say:
"Dylan has that great quality in his voice of youthful exuberance, and also sort of trustworthiness," the producer explained. "I think those are the two qualities that we wanted Bumblebee to have."
"Thankfully, we’ve showed it to a few audiences, and people seem to think that it’d be right and an appropriate voice," he said. "You never know, obviously that can be a sensitive thing for people. But it turns out, they imagine his voice that way."
also unless they state in the film that bee is a young Cybertronian, the backstory is still a million year war. Now if this film is a success (and I hope it is, I need to wash the stain that was last knight away) then we'll see this as a proper reboot, if not, expect them to leverage this as a prequel to 07 and get ready for another film after they reboot gi Joe and the rest of the hasbro properties