As a cule, take it from me; If he stays and somehow, we manage to register all of the new signings, he will still be a starter in midfield next to Busquets and Pedri - he will face some competition from Kessie/Gavi but Frenkie would back himself. Any talk to him being perma benched/put in the stands is nonsense, see Dembele's situation last season, he was also booed by fans but he played a major role in our season in the end and it's water under the bridge.
Interestingly, despite the media reports, accusations of bullying, the drama etc etc, Laporta and Xavi have never officially said they want him to leave or that he has no place in the team. It's always been "We want him to stay, we like the player but he needs to take a wage cut" this is a lifeline given by the club to a player who clearly has no desire to leave. I think his agent is the one trying to get other clubs involved but any time it reaches the player, as seen with Chelsea, it's "thanks but no thanks".
I think he genuinely believes this will all blow over.. which is maddening. It's proper head in the sand shit. We haven't even heard rumors of him searching for a house, it's complete silence as if he'll rock up at training oblivious to what's happening.