Of course, Killer Frost used to be much more of a villain who caused trouble for Team Flash whenever Caitlin transformed, and her powers were coming in quite handy in Season 4.
After what happened to poor Ralph, Team Flash needs all hands on deck; it will come as no wonder if Caitlin feels driven to regain her powers.
Caitlin almost certainly won’t regain her alter ego as Killer Frost within a single episode or two, but it sounds like she’s more than interested in getting her frosty powers back.
Wanting to become Killer Frost is a big departure from earlier in the series when Caitlin was desperate to get rid of that side of her.