The Fallen, in the movies a member of the Dynasty of Primes, was in the comics a servant of Unicron the Chaos-Bringer. Apparently, when TFilm1/2 writers Orci and Kurtzman cast the Fallen in ROTF, it was a long-term strategy to have Unicron feature in the third film as a coming threat, forcing both Autobots and Decepticons to unite to stop him. Had this happened, TFilm3 would have been something like BLACK HORIZON (G.I. Joe vs. the Transformers: Black Horizon - Transformers Wiki), but without the Joes. Instead, DOTM had Sentinel Prime and a space bridge to bring Cybertron to Earth; the Unicron storyline was used in TFPrime instead. I have mixed feelings about it: on the one hand, at least Unicron does not have to be the big bad game-changer for every series (G1, ARMADA, CYBERTRON, etc) and DOTM was strictly between Autobots and Decepticons; on the other hand, this scene is distinctly TFTM-esque: http://tfwiki.net/w2/images2/0/0b/DOTMCybertrontransit.jpg and it is a shame that could not be a planet-devourer. What do you think?