It's WAY too early to even think about a reboot. I'm perfectly fine with the series as it is. There are problems with however if this happens. 1) This will confuse the kids. Those cute little critters who have a bumblebee on ever wall of their rooms will surely be confused when another TF film comes out with a different-looking Bumblebee. The same with the other characters. 2) This series is way too popular at the moment. I doubt Hasbro would want to do something so drastic as to reinvent the series especially so early. 3) How do you know that a reboot will solve your "problems"? How do you know that a new director won't envision Transformers in a worse way? You never know, they can have a new TF series where the bots fight FAAAAAAAR away and just shoot each other and you may miss the Bay-style combat.