I don't think we have an actual answer but what do you guys think? I remember in the BW episode "Possesion" where Starscream says that he "sacrificed" himself for Galvatron and was killed by Unicron. Then Blackarachnia tells him how she read the truth and that he betrayed Megatron/Galvatron and was killed by his hand. So this leads me to thinking BW follows the G1 cartoon, because even though I haven't read the whole Marvel comic series, I know that a lot of time travelling screwed everything up, and TF:the Movie's events didn't happen. So, thoughts?