The new Kayn shadow assassin login screen has a different looking Ashe

If you look at the login screen and the splash art they look different from each other. The login has some actual pants with a different design, she has a longer skirt, her stomach thing looks like its actually gold colored and designed like her other parts of her clothing, her cape doesn't have the gold designs it use too, she has a red colored gem or something on her hood as well as a different design on the gold part and no pointy part at the top of the hood, shorter hair, she has new gloves exposing her fingers and the arm bit is designed differently, new sleeves on her shirt, and her bow is designed differently. Could this mean anything? Probably it could be a update for the Freljord possibly to do with Ashe or maybe even a visual update or nothing I'd like to hear theories about the design change of this appearance change.