Yeah, interesting discussion. This is what I have gleaned from reading the Pinside thread:
CPR will still screen their large-run playfields.
CPR back-catalogue of backglasses, plastics and playfields will now be digitally printed.
Mirco's playfields are screened, except for new titles like WOZ, Hobbit, etc.
That's what I kinda understand. Although Mirco states he has been using Digital printing for playfields since WOZ, but further on states TAF is Screen printed.