Plot Changes (Parts 1, 2 & 3)First off, I'd have all the heroes on deck for the fight for Earth-38. I get because of 'budgetary reasons' that can't have all the actors there, but realistically speaking if you're facing the apocalypse, you need all the help you can get. I'd keep Oliver dead after the first part. The whole 'Lazarus Pit' side story was completely and utterly pointless and really did nothing but waste time. He'll still become the Specter later on in the story, but there really wasn't a point to what happened in parts 2 & 3.The ParagonsLove - Diana Prince / Wonder Woman (Earth-1)Destiny - Sara Lance / White Canary (Earth-1
Disclaimer: This is going to be a long post. There's been so many timeline and continuity changes in the Arrowverse, but I'm my best to keep it nice and orderly.
Original Timeline1918Wonder Woman Film.Debut of Wonder Woman.Steve Trevor dies.1993Rebecca Merlyn is murdered by Daniel Brickwell.Malcolm Merlyn joins the League of Assassins.2000Nora Allen is killed by Eobard Thawne.Henry Allen is arrested for the murder of his wife.Eobard Thawne takes on the identity of Harrison Wells.2002Robert Queen begins an affair with Isobel Rochev.
2003Flashbacks (Batwoman).Robert Queen ends his affair with Isobel Rochev after they are discovered by his wif
So, originally, I planned for the Arkham games to be canon in my universe. But, as I started planning out my ideas for the Birds of Prey spinoff, I realized I wanted to feature Barbara as Batgirl, something that wouldn't be possible if I kept the Arkham games canon. I also wanted to feature both Barbara and Dick as younger characters, around their junior year of college. So I've decided to come up with an alternate idea.
BatwomanBruce would still be missing, though his disappearance would be much more of a mystery. Engaged in a battle with Ra's al Ghul, the two seemingly died in an explosion, throwing both the League and Gotham into chaos. A