According to Comingsoon.net, Paramount Pictures has released a new logo for Transformers 4 during a special presentation. The problem is, this logo has not been spotted anywhere on the web, so hopefully someone who attended the presentation will eventually leak the image online.
"The 2014 section kicked off with the next entry of the Transformers
franchise. Obviously there was no footage to show, but the title does reveal a
clever logo, the right half of the standard transformers symbol acting as the
stem of the number four."