We already know a couple of things about Transformers 4. First, the film is set four years after the original trilogy. Next, Mark Wahlberg will be playing the lead and he will not be a grown up version of the Shia Lebouf character.
Now we are hearing some other news. While the first three movies were set in the US, Bay is apparently looking to make the new movie in China. The reasoning is not so much about the story, but just that they will make a lot more in the Chinese Box Office if the film is made there.
Well, I guess that makes sense… may as well make the movie where they make the toys.