Board Thread:The Flash discussions/@comment-9346948-20170510001536/@comment-24152851-20170512230210

Aren't all of the antagonists, except Eobard, one-off threats? They could have made him a returning threat if they wanted to. Thing with time travel shows is stuff doesn't have to happen in the right order, so an even earlier Savitar could show up. Sure they would know he's Future Flash, but so what?