Uh...Eddie was obviously his DIRECT ANCESTOR or him killing himself wouldn't have done anything to Eobard. Unless they're going with the nature abhors a vacuum theory of time travel wherein a new version of Earth 1 Eobard is just descended from a different Thawne now. Still makes more sense for him to be from Earth 2 and Zoom managed to redirect him to Earth 1, and that's Earth 2 Gideon as well. We'll see.
Going back to the whole 'WHY THE FUCK DONT THEY PUT IN LOCKS AND SECURITY CAMERAS' theme, it seems weird that Wells was able to just effortlessly unlock Turtle's cell and murder him. That little device didn't seem long enough to reach the pineal or pituitary gland going through the nose, so who the hell knows what he tore out of Turtle's head.
*edit*
Also I'm really worried about where they're going with Patty. I really hope she wasn't always intended for a brief stay on the show, if they write her off so abruptly I'll be pissed. I mean aside from the fact that she's hot as hell, she has really good chemistry with Gustin and she's really funny too.