Arcee, partly because that role works well for her in Prime, or Wheeljack because it'd be pretty easy to work in as to how she gets a white sports car. As opposed to, say, a giant metal dinosaur.
My movie would have an allcast, but the Decepticons are yet to be led by Megatron. The Autobots, Megatron and Starscream included, arrive on Earth to stop the Decepticons, who have chosen Earth as a planet to conquer. Somehow Megatron gets influenced by the current Decepticon leader, the Fallen, and turns into a complex character. At the end its a showdown between Optimus, Megatron, and the Fallen. Finally, Megatron kills the Fallen and takes over of the Decepticons whilst Optimus watches in anguish, betrayed as Megatron and the Decepticons fly away, leaving a war-torn city behind. After credits, Starscream looks down at the carnage brought by the Decepticons, and decides if Megatron could overtake the Fallen, he could overtake Megatron. Finally, his optics turn from blue to red. Fade to black. Also, Stallone as a starring role,lol.
My ideal Transformers movies would be a trilogy. The first one would start with a prologue about the history of the Autobots and Decepticons, and how the war between them started. It would then have the Transformers going to Earth. They would scan new vehicle modes and, in the end, there would be a big battle. (I'm not sure what all would happen in that one yet). In the end, Megatron and some of the Decepticons would be killed. Most, but not all, of the Autobots would survive. The second one would be the darkest of the three, and would introduce more characters on both sides. Near the beginning, The Fallen would escape from an Autobot prison where he was being held, along with other dangerous Decepticons. Megatron would be resurrected, and would kill Optimus. Some of the Autobots would then take his body back to Cybertron, where they are planning to find Vector Sigma and bring Optimus back to life. Meanwhile, with so few Autobots on Earth, the Decepticons would take over, and would start building some sort of machine (something like the Solar Harvester in ROTF) that would be able to make huge amounts of energy, and might destroy the planet. The movie would end with the Autobots arriving on Cybertron. The third one would also have new characters. It would start with The Fallen and some Decepticons arriving on Earth. The Fallen would upgrade Megatron into Galvatron. On Cybertron, the Autobots would find Vector Sigma and resurrect Optimus. They would then head to Earth with reinforcements. There would be a huge battle around the Decepticons' base on Earth. Starscream (who would be partly based on Starscream in Armada, in terms of characterization/personality) would start to lose faith in the Decepticon cause. Although he still wants to take over the Decepticons (as he always has), he starts to sympathize with the humans, and wants the Decepticons to leave them alone. During the battle, Optimus would fight Galvatron. Starscream would join the fight. Galvatron would deal a (temporarily) crippling blow to Optimus, and would be about to finish him off when Starscream would take the shot for Optimus and fight Galvatron. He would kill Galvatron by trapping him in the Decepticons' machine and blowing it up. He would be killed in the explosion too, however. Optimus would then fight and kill The Fallen. There would be many casualties on both sides in the battle, but they would come to a truce. The Decepticons would agree to leave Earth alone, and they would stop fighting.
Because most of these ideas people have been making are more in the line of cramming in as much G1y fan wank as they possibly can. Heres some advice: Don't put characters in just to have them. Have every character have a reason and every event contribute to the story. Don't have whole random scenes just because "It looks like G1!" The more characters you slap in there the less people will understand who is who. Oh sure you can have a purple Skywarp and a blue thundercracker but if their characters aren't explained right people will refer to them as "that purple and blue jet" instead of who they are.
So far: Humans: Staff Sgt. Jonathan Jackson-Christian Bale Cpl. Robert Dunn-Terry Crews Nelson Witwicky-Paul Walker (Street racer who finds out his car is Hot Rod) Autobots: Optimus Prime-Red Truck Bumblebee-Yellow Megane Trophy Ironhide-Red Land Rover LRX Ratchet- White Land Rover Ambulance Sideswipe-Red Chevrolet Corvette ZR1 Jazz-Koenigsegg CCGT Hot Rod-Dodge Viper ACR Decepticons: Megatron-Cybertronian Tank Starscream-Rafael Jet Fighter Brawl-BTR-80 Breakdown-Audi TTS Coupe Soundwave-Blue Hummer H2 Shockwave-Cybertronian Tank Barricade-Dodge Challenger Police Car Constructicons-???
For goodness sake, NOOOOO. I'm sick and tired of watching all of these movies where there are no mothers!!!!!!!! WTF is it with all of these movies and books where there are no moms? Half the time, there aren't biological parents at all. It's probably why Terminator 2 stands apart to most movies, there is a mom, and she can kick some serious ass to anybody who harms her boy!!! Why not go a different route altogether. Be it a boy and his mother who is kind of like Bonnie from Knight Rider, a genius tom boy that's good at engineering state of the art vehicles.
Optimus prime=leader-peter cullen rachet=medic-jeffry combs arcee=guardian-tfp prowl=2ndcommand-? Cliffjumper=1st-strikesolder-tfp