So at the end of the day, Eddie Thawne didn't turn out to be the Reverse Flash, or Cobalt Blue...he turned out to be Tommy Merlyn

I kid, I kid. That moment when Eddie shot himself, I kept punching my fist into the palm of my hand screaming "Holy crap, I knew it! I knew it!" Not so much that Eddie would shot himself and thus erase Reverse Flash from existence, mind you, but that something was going to happen to "break up" him and Iris after that whole business with Dr. Stein saying how Eddie was the only one in the story to write his own future, and him and Iris saying "Screw the future" when they got back together.
Also, I guess when it comes to time travel on the Flash, it works as follows: if someone (in this case Flash, Reverse Flash, or someone who can tap into the Speed Force) goes back in time and changes events of the past, then time travel operates on "Back to the Future" and/or "Star Trek" rules, i.e. whatever changes are done in the past change the future, or (maybe) creates an alternate timeline.
But if someone goes back in time, tells their ancestor about the future, and that ancestor does something to prevent such future (such as killing oneself to prevent their great, great, great grandson from being born), then time travel operates on "Looper rules," i.e. because the time traveler is from a possible future, it also means that future technically hasn't happened yet, meaning whatever actions caused by the time traveler before he or she ceases to exist still remain intact.
That said, since it's been reported that Tom Cavanaugh will return for season 2 as a series regular, what if he doesn't return as Eobard Thawne? What if he returns as the
real Harrison Wells, somehow brought back as the result of whatever time paradox was created, but having no memory of the last fifteen years because, technically, he didn't exist during any of it. Or, if season 2 is going to be diving into the multiverse, maybe he'll be a Harrison Wells from an alternate timeline? After all, before Eobard was erased from the timesstream, he transformed from Harrison back into his original self.
In any case, what an absolutely terrific finale to an absolutely terrific first season. But that cliffhanger?


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