User blog comment:SeanWheeler/Saving The Birds of Prey Wiki/@comment-27640688-20200206182624/@comment-2054358-20200207060452

Well, I doubt we'll ever see the Earth-203 Birds of Prey again, so all we would have connecting Birds of Prey to Arrow is a very short prologue that served as nothing but an Easter Egg and to show an Earth destroyed by antimatter to establish the DC multiverse at stake.