I don't know if it is true or not. But here is the source: https://gizmoblaze.com/2020/06/29/bl...change-in-wow/
J. Allen Brack, president of Blizzard Entertainment, during the company’s Q1 2020 earnings call revealed the release date for the brand new expansion. Brack mentioned that the eighth expansion, Shadowlands will debut in November 2020.