it's over.
It is not over at all.
If that was the case, PSG would not discuss with Barça anymore. This fact only means PSG is willing to sell and find a solution. The only roadblock is their valuation of the player has still not been met by Barça.
Imo, they can go on until last day of the market which is silly for a club about to lose his best player.
I would hate Dembélé at PSG. Recipe for disaster.