The official timeline for the non-movie Transformers that have been starring in a series of video games confirms a bunch of things. It confirms that Megatron is not a good robot. It confirms that next year's Fall of Cybteron game involves a battle between space-bound Autobots and Decepticons.
Concept art is a guess, a hope and sometimes an unintended lie. Remember that today as you look at the concept art for next year's Transformers: Fall of Cyberton, the 2012 follow-up to Activision and High Moon Studios' impressive 2010 Transformers game War for Cybertron.