The latest official promo picture for Transformers 4 Age of Extinction features the three main human characters of the film:

Trailer of Transformers 4 Age of Extinction

(Click on the picture to enlarge.)

Plot:
“A mechanic (Mark Wahlberg) and his daughter (Nicola Peltz) make a discovery that brings down Autobots and Decepticons – and a paranoid government official – on them.”

From left to right you may recognize Mark Wahlberg, Nicola Peltz, and Jack Reynor.

–> more pictures and behind-the-scenes videos of Transformers 4

In theaters: June 27, 2014.
:)