User blog comment:Kaestal/My theory of Savitar being the Arrowverse version of Cobalt Blue (And therefore Eddie Thawne)/@comment-27700324-20170413215805/@comment-24152851-20170414005806

I think Savitar saying "you made me who I am" would be far more direct than Eddie shooting himself. It's implied Future Barry voluntarily imprisoned Savitar. Thr only way I can see the Cobalt Blue theory working was if it was Future Eddie (the one who survived who eventually became Eobard's ancestor), and becoming a time remnant if you like.