Quote Originally Posted by hawkangel View Post
Thanks for the replies and answers. It’s pretty much what I thought.
I would have loved to see how autobot city was established and how the Decepticons were driven off earth.
Oh sorry, I misunderstood your original post and for some weird reason thought you were asking what happened after 2007 - but you were asking about what happened between 1985 to 2005! Mea culpa!

Okay...

So the cartoon itself does make a time skip from 1985 to 2005 with little explained (like, where the hell did Sparkplug go?). However, the Japanese did try to fill in at least one gap with the direct-to-video "Scramble City" episode which showed the construction of Autobot City. This story is set in the late 80s (so well after the events of Season 2) and establishes that Ultra Magnus was already on Earth - the Autobots had constructed Metroplex and the Decepticons had constructed Trypticon.

Now the events in the Marvel Comics on the other hand continue until 1992, and the G2 comics continue events until the mid-1990s. Having said that, the events of The Transformers The Movie don't happen in the main universe of the Transformers Marvel Comics, but rather an alternate future timeline. Nonetheless, in the comic continuity Autobot City is constructed over a buried Metroplex who slumbers beneath the city. He was activated during the Quintesson occupation of Autobot City.

JAPAN!
Naturally the Japanese have come to fill in more gaps.
  • Late 1980s: The events of Scramble City happens (see above)

  • Early 1990s: G.I. Joe defeats Cobra. Cobra Commander will eventually become Old Snake (as seen in Season 3)

  • Late 1990s: The events of the Battle of Stargate happens.

  • 2000: The events of Car Robot happens (with extended canon happening up till 2002).

  • 2003~2005: a splinter timeline is created and the events of Binaltech happens.

  • 2004: back in the main timeline, the events of Robotmasters happens.

  • 2005: the events of KISS Players begins

  • 2010: the events of The Transformers The Movie happens (or 2005 in the Anglophone canonical timeline)