The game website has updated with a mini game which let's you find new transmissions.

http://transformersgame.com/

So far

- Megatron art work
- Prime art work
- tiny movie with the Decepticon logon on a seeker's wing
- A video of an Animated like Thundercracker flying behind a tower
- View of Cybertron from what appears to be a moon.
- Trailer