IIRC Griezmann snubbed Barca last year too, they had some sort of agreement and then he decided to sign a new contract. If you ask me, he'll sign wherever he'll get paid more money. PSG must be very attractive for him being in France plus having players like Neymar and Mbappe. Also if he leaves for Barca it will be like he abandoned his team for a Rival, this tarnishing his legacy. This will be better received by the fans. And I'm sure PSG will pay him whatever he wants as they don't have a top top French player to be their poster boy