Premier Crus in Mâconnais?

Hello my fellow winegeeks!

So i heard this rumor in the sommelier whispers, that by the 2020, starting from vintage 2018, Mâconnais in Burgundy would have around 22 premier cru vineyards, most of them being in Pouilly-Fuissé. 

I'm having trouble finding any facts about this, so can anyone confirm or deny this statement?

I would be very interessted to read more about this! Seeing how it could effect my work in the restaurant, as i expect price will rise even more than at the current rate... 

Much appreciated!