PSG never wanted to sell him in the first place. They set an absurd ammount for him knowing that Barca can't match that only to fuck with his head : ,, See Neymar , we set the price for you but Barcelona doesn't value you as we do , they don't want you , we can also give you more money. As Barca was increasing their offer and made a decent one , it caught them offguard so that the emir had to come and say Neymar isn't for sale. He could have said this 2 months ago, lol.
Even if Barca gets from somewhere 250 mil and puts them on the table tomorrow for PSG , PSG people will just say....yeah....we actually don't want to sell Neymar.