My prediction: 3 of next 5 PGA Championships will endure horrific weather: Bethpage, Voldemort National, and Oak Hill. Baltusrol and Aronimink won't fair any better, and the move to May, along with commitments so far out, will be seen as a massive fail on the part of the PGA leadership. PGA should bring in unique southern courses to achieve diversity of region from 2025 to 2035.
USGA is out front of the PGA in terms of geographic diversity (Erin Hills, Chambers Bay, Los Angeles) and needs to continue this trend. Here is a meek chart of regional diversity
PGA USGA
Bellerive, Southern Hills Erin Hills
nothing Chambers Bay
Quail Hollow Pinehurst
Baltusrol, Aronimink Bethpage Black, The Country Club, Shinneock, Oakmont, Winged Foot
nothing Los Angeles, Torrey Pines
nothing Pebble Beach
Valhalla nothing
What's missing? Florida, Texas, Arizona, New Mexico, Colorado, Illinois, Ohio. Those are some big golfing states that deserve a sniff at a major championship in the coming years.