How on earth could Eddie be Zoom? Wells is Zoom, he flat out told Cisco he was Eobard Thawne, and said Eddie was a very distant relative implying his origin is the same as in the comics, he's from the 25th century. Except this version apparently has unstable powers and stranded himself in the 21st, and is planning to use Barry to try and get himself back to his own time.
So Wells admitted he was there to kill Barry, not Nora, which puts a new context to when Nora shouted "don't let him touch you" to Barry that night. Also, why the hell would he have traveled back 500 some years to kill Barry Allen?