My Prediction with Xayah
I think that once the tank update goes live and BC and Bork get nerfed, Xayah will see a rise in playrate and win rate. The reason being, right now Bork is so strong that all adcs are rushing it regardless of how synergistic it is with their kits, like you even have champions like caitlyn rushing it, a champion that's rarely in range to use the active.
Because of this, Xayahs preferred starting item, Essence Reaver, is seldom picked bc the power spike it gives is much weaker than that of bork. However, Xayah reaaally wants the item as it and Ionian boots put your w amd e on such a low cd, that you practically have permanent attack and movement speed boosts as well as constant snares and burst. Not to mention, having your ult be on such a low cd is insane. I'm sure fellow Xayah players can attest to how good ER CAN feel on her.
Just mark my words.