Possibly joining Mark Wahlberg on Transformers 4 are two names previously said to be attached to the movie with Nicola Peltz (Avatar) and Brenton Thwaites.
Nicola Peltz would play Mark Walhberg's daughter with Thwaites her boyfriend.
Not much is known about Transformers 4 other than it takes place a few years after the last film with China somehow involved as well, possibly the setting for the movie. Bay has previously said it's not a reboot and that Peter Cullen will return as the voice of Optimus Prime.
Transformers 4 starts shooting next spring and has a July 4, 2014 release date directed by Michael Bay and starring Mark Wahlberg.