This post is speculation.
From a 1.5 beta Chinese preload there is mineable Chinese audio and a file diff. From these and translating the transcriptions of the audio via https://t.co/AXuHr99SFV it would suggest 1.5 will add Eula Cryo/Claymore/Mondstadt and Feiyan Pyro/Cata/Liyue pic.twitter.com/5AQ0v2m3nD

— AE Entropy (@AeEntropy) March 14, 2021