This week, The PGA is holding one of golf's four major championships, The PGA Championships. I mention this because prior to 2019, The PGA Championship was held in August, and was the 4th of the 4 majors to be played. The reason why the PGA moved their championships is because with golf becoming an Olympic sport, the PGA Championships would have to shuffle their calendar every 4 years and try to squeeze themselves in. Also, perhaps not the main reason, but the event will no longer face the obstacle of being played in the U.S. during NFL season.
So should the USTA make a similar significant move with the U.S. Open?
The warm-up calendar for the US has been decimated. Since the tours pushed Wimbledon back a week, there's one fewer week between the last two majors (6 weeks)... which wouldn't seem like a big deal, but the tours insist on scheduling European clay events between the two majors.
For the women, a key warm-up (New Haven) was sold to China, so there's no WTA event the week before the US Open. In fact, there are only four WTA hard court events leading into the US (San Jose, DC, Canada, and Cincinnati)... one fewer event than the grass court warm ups for Wimbledon.
The week after the US Open, the WTA scheduled a Premiere event in China.
The biggest warm-ups for both tours (Canada and Cincy) will have to be moved in two of the next five years (2020 and 2024) to accommodate the Olympics.
The US Open lost a huge US partner when CBS television ditched it for NFL games. They still have ESPN but will battle for attention against football (both NFL and College).
I always thought moving the US Open from Flushing (which has made multiple improvements to the National Tennis Center), and from the Labor Day holiday weekend was sacrilege. But the more I see of what's happened to the event and it's warm-up calendar, I think it's a notion worth serious consideration.