Bale is a top class player and I don't see why Madrid would even entertain the idea of selling him now that Zidane has left, as it was Zidane who didn't fancy him not Madrid. Not to mention Ronaldo leaving too. They need as many goalscorers as they can now to replace Ronaldo's goals so it makes no sense to sell Bale, I'm not sure of the numbers but was Bale their second top goalscorer last season?
Why would Madrid sell him and put themselves under so much pressure to replace both him and Ronaldo? From a footballing standpoint it makes no sense at all. We can all hope saying such things like the fan's or Madrid don't appreciate him, or they will still start other players such as Isco ahead of him and Bale may still not get enough playing time, but if that was the case you would have to ask yourself why would we even want Bale? if he still couldn't get into the Madrid team, I don't think that will be the case though. I predict Bale will stay and be an integral part of the team, their star player that they will look to to win them games. The exact reason why we want to sign Bale for ourselves.
I would say the only hope is if they want to sell him to raise funds for a Neymar or Mbappe and that is very unlikely.