My memory is too horrid to do long lists. How do you all do it?
1. Starscream suffers damage to his CPU which causes him to forget not only the war, but also Skyfire's accident and their original trip to Earth. Skyfire takes advantage of this. Perceptor can see it's wrong.
2. Blurr is really a femme. Unsure if I have posted this here before or not.
3. Dion was not rebuilt into Ultra Magnus, but rather the orange-and-purple femme on Elita's squad.
3a. She is in love with Elita as she had once loved Ariel.
3b. She is jealous of Elita as she had once loved Orion.
4. When Skyfire and Starscream met, Starscream was one of Skyfire's students. This was frowned upon.
5. Perceptor is a Decepticon spy. Based solely on his name. (He is the only Autobot with an "or" name, whereas the 'cons have ReflectOR, DevastatOR, MenasOR, TankOR... you get my drift)
5a. Alternately, someone thinks Perceptor is a spy because of his name and manages to convince a good number of Autobots that this is true when it isn't.
6. The Lamborghinis and the seekers trade places. (i.e. Red Alert, Sideswipe, and Sunstreaker are Decepticons and Starscream, Skywarp, and Thundercracker are Autobots.) This could also work with Datsuns.
7. Moonracer is the little sister of Sideswipe, Sunstreaker, and Red Alert, and Firestar is Inferno's little sister. So if their brothers are bonded, does it make it incestuous to pursue a relationship? (Because the Firestar X Moonracer pairing needs more love.)
8. Arcee tires of Hot Rod and Springer fighting over her and goes for someone completely unexpected instead.
9. Powerglide's reaction to Astoria's death.
10. Sari and Spike from G1 trade universes. (You see this one with bots a lot but never the humans.)