Ok this may be corny or cool who knows lol .. But ever since i heard mention that there was an idea to work the dinobots and devistator into the next movie , the first things to come to my mind after watching the movie was this...
The Dinobots
Flashback....
We see a team of 5 autobots tailing megatron to earth. Megs crash lands as he is found in part one . The team of autobots lands saftly and they scan for some cover to try and blend in, only there are no machines for them to scan so they wind up scanning local life forms.. Its dino times so 5 dinos are scaned and we get Grimlock , Slag, Snarl, Sludge and Swoop. They search for megatron but dont find him or the alspark. They signal home and let the autobots know the alspark is on that planet .. They find a cavern , and shut down till the other autobots arrive. The signal somehow gets lost among the stars untill millions of years later it finally reaches cybertron and then Bumblebee is sent to earth by optimus prime. The decepticons also receive the signal and so they send starscream and the others to earth as well... Now flash forward and optimus and the gang are searching for grimlock and the rest of the dinobots someplace on earth. They are found and maybe unable to reformat into a vehicle or choose to keep there dino modes. The long period of stasis lock could mess up there systems making them act as they do in G1
For Devastator
Starscream comes back with reinforcements, they locate the spot where they dumped megatron and the others.. Not all them can be saved .. Devaststors spark has life still but his body is shot so maybe they split his spark and place it into 6 seperate bots , seperatly they are there own personality but when combined they are devastator ? Or Maybe Bruticus, minus the space shuttle lol
Then a big ass battle pops up, humans gets smooshed and bots get blown to hell lol...
Anyways thats my ideas to bring the Dinobots and Devistator into the Movie.
But who knows lol , i just cant wait to see part two
lol