>>9864257My current fanon uses both, he starts of as a regular Optimus, gets mind broken by Unicron and becomes Nemesis (g1 style body), eventually thanks to his Matrix fighting the corruption put onto it, he starts to return to his former self and eventually sacrifices himself to destroy Unicron. Later his remains are found by Exhaust and Bugbite who frankenstein him back to life with new parts to replace what's missing and remove his matrix to rewrite his memories to make him a being called Scourge (g2 body). eventually the autobots reconnect him with his Matrix and he becomes Optimus Prime (g2 body) once again.
>>9864255 