Miss Fortune Making a Return to TFT?

If noticed in this recent update,

https://na.leagueoflegends.com/en-us/news/dev/dev-tft-galaxies-team-compositions/?utm_source=LeagueClient&utm_medium=OverviewTier2Pos2

Kayle is listed here. She is a Valkyrie and Blademaster. Why would this mean Miss Fortune is making a return? Well, Kayle is wearing the Aether Wing skin which is a part of the Steel Valkyrie skin line.

GGMF is a part of the Steel Valkyrie skin line as well. This line also includes Blade Mistress Morgana and Bullet Angel Kai'sa.

Also note, not all complete sets were shown in the update. They only show 3 main ones (Star Guardian, Cybernetic, and Mech-Pilot). Valkyrie is another of these origins? (sorry still learning tft lingo. I know we have classes and origins, don't know the difference). So could my favorite red head be making her return to TFT?