Not sure how to feel about a brand new character which sounds like a female version of Gideon, but I'm not going to shoot down the idea until I've seen her in action.
I actually like the idea that she's been something of a mentor for Reid and am quite happy to hear there'll be no romantic interest in the team.

(I don't count the platonic relationship Morgan and Garcia has, which is perfect, but I'd also like it to stay the way it is!)
Here's to hoping Kevin and Garcia doesn't get back together, though.