'Arrow' Fan Theories That Might Actually Be Possible

List Rules
Vote up the most plausible fan theories about 'Arrow'.

From the true identity of certain masked heroes to ways the CW could expand the Arrowverse, fans on the internet tend to run wild when it comes to solving Arrow's mysteries. Fan theories about Arrow include special appearances by popular DC characters and a villainous group capable of replacing the sadly departed Suicide Squad. Not to mention all of the elaborate theories that popped up during season six as fans attempted to answer the season's most pressing question: Who is Prometheus?

The best Arrow fan theories can sometimes be a bit strange, but they're all earnest attempts to understand the unanswered questions from the Arrowverse.