- Weapon: Switch Blade Tail
I'd like to see some elements of Animated, Armada and Prime mixed in.
MECH is a group formed by an ex-Sector 7 agent controlling a militia, who takes over D.C. and using the technology created from Megatron and stolen All Spark shards, creates new life.
The Mini-Cons. Intended to be weaponry, but along the way we find out they have Sparks and consciences and want to be free of war and help Optimus to fight to secure their freedom.
Find out that one of the Mini-Cons was meant to be a hidden weapon in the form of a girl named Sari. (Come to find out, she's a walking, breathing, ticking time bomb who just wants to be normal and needs Autobot help)
And what they don't know is that by using the All Spark shards, they send out a signal and more Decepticons come to Earth when they detect the energy readings and the Mini-Cons.
Leading into the next chapter (movie 5), which could consist of a desperate race such as the Junkions, needing defense from an empire like Jhiaxus's Decepticons. But with a change... Created by the All Spark, but not from Cybertron.
Something like that. If I can spitball something like this, someone with real talent could come along and make a new storyline, keeping the current bots and humans, with a new villain and new reason to be.
NOTE: Realize that I am not a perfect Christian, nor do I profess to be. I apologize if anyone's ever offended by me, I'm not perfect. Don't hold my posts and opinions against other Christians.