Plot: It's been 4 years after Transformers 3, and the Autobots are now involved in human activities (helping old people across the street, racing in Daytona, etc). The humans have reacted in a relatively good way. However, the peace is interrupted when a ancient Decepticon (Cyclonus) shows up, causing ancient Autobots (The Dinobots) return to battle Cyclonus.
Optimus Prime: I would like Optimus Prime to still be leader of the Autobots, of course. Optimus Prime should probably keep the same head, but have a different body.
Bumblebee: Bumblebee should still be an Autobot Scout, but since Sam isn't in Transformers 4, he shouldn't be as prominent.
Hound: Hound should be the big, gruff military veteran type (like Ironhide). However, I hope he changes his look however, I don't want him to look like the hobo from down the street!
Drift: I think Drift should be like a samurai. He should be noble, kind, and should always use swords instead of guns.
Crosshairs: I don't quite know about about Crosshairs, but I do want him to have an Australian accent for some reason.
Lamborghini Adventador (Sideswipe or Bluestreak)
Pagani Huayra (Hot Rod or Mirage)
Emergency Vehicle (Red Alert or Ratchet)
Chevy Sonic RS (Smokescreen or Someone Else)
Dinobots: I am really happy that the Dinobots are to be in Transformers 4. However, I already know what Dinobots I want, which are Grimlock, Slag, Snarl, and Swoop.
Freightliner Argosy (Motormaster or Nemesis Prime): I think I want a Kamen Rider Gaoh personality out of this classic villain.
Rally Fighters (Drones or Stunicons): I kind of want either MPD (Mass Produced Drones) like the Dreads, or individual Stunticons.
Trumpchi Airjet: I don't know why but, either I want this car to be a Decepticon or a human vehicle.
Cyclonus: I kind of want him to be the Main Antagonist and the enemy of the Dinobots. My idea is that Cyclonus fought the Dinobots during the time of the dinosaurs. Both sides were buried in the sand, until Cyclonus is awakened in Transformers 4.