User blog comment:Kaestal/My theory of Savitar being the Arrowverse version of Cobalt Blue (And therefore Eddie Thawne)/@comment-27673963-20170414150925/@comment-24152851-20170415044202

I haven't entirely crossed out Savitar being Future Flash. Savitar's remarkably like this version of Future Flash who went insane and went back in time and battled his younger self and actually killed Wally. They even have the same blue lightning.