Here is a message from Luminous Productions on the delay:

As a result of ongoing discussions with key partners, we have made the strategic decision to move the launch date of Forspoken to January 24, 2023. All game elements are now complete, and development is in its final polishing phase.

We would like to thank you for your continued support and patience on this journey. Your excitement for the game inspires us every day and we cannot wait to share more about Forspoken with you later this summer!