I have followed the news closely, the CFR might decrease a bit in Hubei because China has reinforced it with 20,000 medical staff and hospitals. They also have found some better treatments (not a cure, to be clear).

The approx. 20% hospitalization figure is the elephant in the room. Even if reduced to 10% or 5%, it would still overwhelm medical resources of any country.

The point is if a country gets complacent, it could be too late to contain it without drastic measures and mass sufferings.