These model kits consist a main robot skeleton and various parts to form either movie version Optimus Prime or Bumblebee. It is presume that these models have no alternate mode, in order to have the movie accurate figures.
Another image that appeared in Dengkei Hobby from Cybergundam Blog, showcased the Takara version of DOTM movie Voyager Class Optimus Prime & Deluxe Class Bumblebee. Also the new Transformers Targetmaster Micron figures for the give-away campaign to commemorate the launch of Transformers DOTM toy line are also featured.
You can view the original link here.
Seibertron, Ultimate Transformers Resource!
As for availability, they come with either MP Rodimus Convoy or Movie Masterpiece Bumblebee, at Bic Camera and another store I can't figure out.