Quote Originally Posted by CaptainLagbeard View Post
No way to transfer the PS4 lisence to PC, But it shouldn't be too costly to rebuy the game and expansion these days...
Only subscription time and collector's edition bonuses are shared between platforms.
Quote Originally Posted by Valkyrie_Lenneth View Post
No, the game requires the license for the version you are playing.
Valkyrie_Lenneth is correct. Is it intuitive or sensible? No. But this is Square Enix we're talking about here. They're known for their arcane account and billing procedures and interfaces.