Considering the Current run of Transformers has now finished here is an idea for the writers that they could implement: All of the original Thirteen Primes had an artifact that would give the bearer a new form and a role,
Prima = Leader
Vector Prime = Time Guardian
Alpha Trion = Archivist
Solus Prime = Forger
Micronus Prime = Enhancer
Alchemist Prime = Builder
Nexus Prime = Combination
Onyx Prime = Uniter of Tribes
Amalgamous Prime = Transformation
Quintus Prime = Knowledge
Leige Maximo = Schemer
Megatronus Prime/The Fallen = Bearer of Power
The Thirteenth Prime = ???
They are needed for the defeat of the being of Darkness and Fear themselves - Unicron!!!!
The bearers would be as follows:
Prima = Optimus Prime (Duh)
Vector Prime = Big Shot (Thinks inside the Time Stream)
Alpha Trion = Perceptor (An Autobot of such intelligence should keep a LOT of notes)
Solus Prime = Ironfist (Specifically IDW's incarnation)
Micronus Prime = Fracas (Targetmaster and they aren't always gonna be Autobots)
Alchemist Prime = Aquablast (His original profile said he was an engineer)
Nexus Prime = Piranacon (I want to use a character who has never ever been mentioned in IDW's runs)
Onyx Prime = Barricade (Powerful and respected/feared)
Amalgamous Prime = Broadside (Gains confidence and becomes less seasick and agoraphbic)
Quintus Prime = Sharkticon (Not Decepticon but on Quintessa)
Leige Maximo = Ramjet (The Battle of the Backstabbers begins)
Megatronus Prime/The Fallen = Grimlock (After Optimus, he's the bot that begins it)
More to continue with the plot shortly.