Try this..., it's the Ark. The Ark name has been used hundreds of times in fandom for other ships that aren't THE ARK from G1#1.
Try this...., the Ark is a prison ship transporting prisoners to another planet to be treated much as the UK used Australia as. Rebellion ensues and it crash lands on the moon putting all transformers into stasis lock.
Millions (thousands..., hundreds..., 13..., whatever) of years later Astronauts discover the ship, and accidentally reactivate the computer which in turn begins reactivating the inhabitants. The prisoners win, and their leader is crafty, smart and hugely powerful already. He has his minions go out on raids to gather what he needs to build him a newer better body... OUT OF THE MOON!
Yeah buddy, I think that robot in the teaser is Unicron, we know Shockwave's in it I can see him being his lead minion, the fire truck is Ultra Magnus or Rodimus Prime who was put in charge of the prison ship. The scene we see that was filmed in Chicago (my home, but I didn't get cast as an extra despite standing in line for five hours

)where they show Sam and Dempsey's character standing on a pile of rubble looking up is them watching as Unicron either comes to life, or is destroyed.
AND I HAVE NOTHING IN REALITY TO BASE THIS ON BUT WHAT WOULD BE AWESOME!!!
-Joe