That's right, it seems that all of the posters handed out by Hasbro during San Diego Comic Con have hidden messages on them, just waiting to be found and read by fans. It is believed there were four different posters handed out but we've only received images of the first two so far. This poster, featuring Optimus Prime all on his lonesome, carries a hidden message in Cybertronian just like the full-cast poster of yesterday's news.
When translated, it reveals another short message, which seems as if it may be intended to come before the other one found previously. Together, the two short sentences form a somewhat more dramatic statement (though its meaning seems no more clear).
Check out the images below, and get cracking! Sadly this message is not as tough to decrypt as the last one, but should still be fun - I await your puzzling on the Energon Pub Forums, though be careful not to post too much information (even inside spoiler tags!) for the first while, so as not to spoil the fun for others. And if you happen to possess one of the other Hasbro SDCC posters, please reach out to us - we'd really appreciate it!
Best of luck to all, and don't forget to stay tuned to Seibertron.com for more Transformers news, both normal and novel!
I get the feeling we were "meant" to find and translate this one first - it's simpler, 
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