Theory #1: Nemesis Prime

It's been years after Optimus Prime left Earth to find his creators. Ever since, Rodimus Prime, Optimus Prime's son, is leading the Autobots.

However, Optimus Prime quickly finds the Creators. They kidnap Optimus Prime and create a clone of Optimus Prime to destroy Earth.

Meanwhile, back on Earth, Rodimus Prime and the Autobots battle Galvatron and a new group of Decepticons when Nemesis Prime, under the guise of Optimus Prime, joins the battle and saves Rodimus Prime.

Rodimus Prime and the other Autobots rejoice that "Optimus Prime" has returned. However, the humans start to get suspicious.

Things reach a boiling point when Nemesis Prime reveals himself and kills an Autobot. Nemesis Prime then joins the Decepticons, pushing Galvatron out of leadership.

Rodimus, who is appalled door the actions of Nemesis Prime, forms an uneasy alliance with Galvatron, in which the two and the new alliance of Autobots and Decepticons take down Nemesis Prime.

Sensing this, the Creators head to Earth, with Optimus Prime in tow...

Autobots:

Optimus Prime
Rodimus Prime
Ultra Magnus
Bumblebee
Hound
Drift
Crosshairs
Override
Blurr
Trailbreaker
Springer

Dinobots:

Grimlock
Scorn
Strafe
Slug

Decepticons:

Nemesis Prime
Galvatron
Cyclonus
Scourge
Onslaught
Drag Strip
Vehicons


What do u think?