The website gamebastion.com is an aggregator of news from open sources. The source is indicated at the beginning and at the end of the announcement. You can send a complaint on the news if you find it unreliable.
In a new trailer for Tekken 8's first season, Bandai Namco revealed that Lidia Sobieska will be the second DLC character after Eddy Gordo added to the roster, joining the game sometime this Summer.