There is a Pre- Order , but I am not aware of any Pre- Release . There is a Compendium source labeled, "Player's Handbook 2024 Pre-Order Compendium", but I believe that is a placeholder that will be renamed and unlocked when the book is made available to partners. DnDBeyond does have a pre-release offering, but they are wholly owned by Wizards of the Coast, and are not bound by the same licensing agreements Partners are. Roll20 cannot release material they have no permission to.