Yeah, the story of Binaltech basically says exactly that; that Wheeljack's GT System duplicate survived, so he didn't die when his original body was destroyed.
Not exactly.
My mistake, but then Wheeljack somehow comes back to life for Victory series, then I wonder if during the time gap between season 2 & the movie, he invented a cloning means and cloned himself so that he could live beyond the battle of Autobot city?
I’ve always headcanon’d that the attack merely destroyed their body storage while both Wheeljack and Windcharger were in their BT Bodies
What actually happened is, after the later chapters of Binaltech were split off into their own alternate timeline separate from the main one (via time-travel shenanigans similar to those that split the timeline in two at the end of The Legend of Zelda: Ocarina of Time), the denizens of the BT World were eventually able to make contact with the main timeline, and the Wheeljack and Prowl of the BT World were sent across the dimensions to get some supplies from the main timeline to bring back to theirs.
After a couple of supply trips back and forth, however, the two ended up stranded in the main timeline due to the Quintessons of the BT World sealing off that world from all others with a Quadrant Lock (the same thing they had used in the G1 season 3 episode "The Face of the Nijika" to seal off the world of the Zamojin).
With the BT World versions of Wheeljack and Prowl unable to return back to their home dimension, the two simply decided to stay in the main timeline and take the places of their deceased counterparts who died back in the events of TFTM, switching out there BT bodies for new ones similar to those that they had before they received their BT bodies (and similar to those of their deceased counterparts).
All this was done to explain how Prowl is alive in The Headmasters, and how Wheeljack is alive in Victory, as these events took place in early 2011, in a short manga story titled "
Controverse".