Ubisoft hasn't set a firm date for XDefiant's release. In fact, Ubisoft hasn't had much to say about the game at all since the end of its closed test in August 2021.
That's a while to go without an update, but it's totally abnormal for a multiplayer game in the early stages: Ubi's stated purpose for the closed test was to gather feedback that'd directly influence XDefiant's direction. Presumably, Ubi has its head down working on the game.