According to MTV, Mark Whalberg will be bring a something special with him to their Movie and TV Awards. What is being called a "never-before-seen-clip" from Transformers The Last Knight will be shown at the event that will be taking place on Sunday, May 7th.
The post is highly speculative, no telling what new will be shown in this clip, as there's a whole 30 minutes of fan experience footage to draw on. Hopefully it will give up something totally new.