WB Games Support has answered FAQs from players on their Twitter profile. Now it is clear that up to four characters can be played. In addition, there will be no cross-save between platforms.
4 Häuser & 4 Charaktere
For those of us who have to share the game, the PC and/or the console with someone else (or for those who just want to have a character for each of the Hogwart houses), the game now offers the possibility to occupy a separate storage space for each of these characters. With the structure of the storage spaces, it is therefore possible to save 10 times manually, while there are five additional automatic storage spaces.
Since there will be no cross-save between different platforms, the company has come up with the following: You can connect multiple versions with the same WB Games account and receive in-game rewards in each of them. However, it remains unclear whether this also applies to consoles of the same family as PS4 and PS5.
Hogwarts Legacy is scheduled to be released on PC, PS5 and Xbox Series X|S on February 10, 2023. The version for last generation (PS4, Xbox One) will be released on April 4, 2023. The Nintendo Switch version will be released on July 25, 2023.