Don't hold your breath thinking emax sales will drop, after all emax still has a high profit margin. Once other emax knockoffs are released maybe emax ingots will drop in price to compete ? The way I look at it, the newer Fusion 600 zirconia and others to come like it will be just another product to sell with exciting zirconia hype in new sales ads.
I see this newer zirconia as a driving force to decrease sales in pfms, increased sales in FCZ, and increasing numbers of doctors going more metal free. Since some doctors and techs still have the mind-set that zirconia's hardness will wear down teeth, its going to be hard for this group to argue with a 600 Mpa zirconia and 200 MPa stronger than emax. I see this as a win win in the world of metal free monolithic materials.
The bigger question, will improved monolithic materials like Fusion and Vita's Suprinity like materials be the straw that breaks the camels back,,,, meaning, will fewer lab techs be needed with more in-house milling taking over using monolithic materials.
On Ivoclar, gossip says Wieland will have an improved Zenostar zirconia in the future and most of us already know about the new Select wet mill holding 48 emax cad blocks at lower block prices. But milling emax will always be a slow process and pressing is no where near being outdated. You can still press 3 emax crowns in less time than milling 1 cad unit. Maybe Ivoclar is trying to be more competitive with Zubler, Whip Mix ovens...