Interesting. It makes sense (IMO) to use this opportunity to introduce the Killer Frost powers to our Caitlin Snow.
I got the impression that, while she seemed aware that they were happening, that she hasn't yet told anyone else. I'm sure that'll get interesting too. Hopefully, as they progress, they won't necessarily include the whole crazy-murderousness thing.
Shout by AgusBlockedParent2016-10-13T18:56:56Z
Killer Frost from Earth 2 had a brother, so if Caitlin has powers now in this new timeline, I bet she has a brother as well.
Nice easter egg with Dawson's Creek playing in the background of the diner scene with John Wesley Shipp.