The Flash: 10 Major Predictions For Season 3

This one's a little harder to work out, but it does seem like we'll be seeing Danielle Panabaker get her evil Elsa on once again in Season 3.

Killer Frost was apparently killed over on Earth-2, and on Earth-1 Caitlin hasn't exhibited any signs of being a metahuman. And yet despite that, the episode Kevin Smith is directing this year - the seventh of the season - is titled 'Killer Frost'.

That leads to one obvious conclusion (Killer Frost returns) and a couple of possibilities. Either the version from Earth-2 isn't actually dead, or we see Earth-1 Caitlin become her. Or, in secret option 3, we see Caitlin's mother as Killer Frost, since she's set to appear and we'll learn more of Caitlin's family life (this idea is a bit more out-there, I'll admit).

It's a long-shot for Earth-1 Caitlin to become Killer Frost now, though there's the chance the metahuman abilities could've been lying dormant, so unless the title is just symbolic, a return for the Earth-2 version is a little more likely. Either way, though, getting more Killer Frost should be great fun, especially as it gives Panabaker much more to do than usual.