Well they've dropped the "2" from the title of the Transformers live action sequel. I don't think much of the title, I always find it a bit cheesey when a sequel has the word "revenge" in its title these days. Now apparantly theres two ways this title can be interpreted. The first and most believable is that Megatron is going to find some way to come back, maybe as Galvatron or something. I came across the second when reading an article in Empire. Apparantly theres a minor character from the comics called "The Fallen" who does actually seek revenge at one point for being banished into a different dimension or something. I think he had some connection to Unicron. Theres also rumours that Autobots will be teaming up with Decepticons to battle a greater foe, so again this could be a reference to Unicron. If this is true then maybe it will folow a plot close to the one of the animated movie. Ofcourse this is all speculation and I still think its more likely that the title is referring to Megatron.