From Virginia Beach to Williamsburg the number of Disc Golf players is not declining. I would say still increasing.
Courses:
The two local courses I frequent the most, I used to be able to tee up 7-730am the first one out and maybe a few players ahead of me starting my 2nd round. I now have to tee up 630-45am-ish to stay ahead of the increase play. I can still play the Waller Mill course two rounds and still be the only one on the course, but that's because it's a heavily wooded ravine course, and a physical beatdown. Norfolk is adding a third 9-holer, and Virginia Beach last year added its first 9-holer, and an 18-holer is being added to its newest park during phase II additions. I stay away from Bayville starting late morning, it gets packed.
PIAS:
All three stores have added rack space. Virginia Beach store Innova's move quickly, as with MVP/Axiom and Westside at a good pace. Newport News and Chesapeake store added more MVP/Axiom space those discs move at a quicker pace than Innova. Used bends move quickly at Virginia Beach, decent pace at the other two stores. All other brands seem to move slower especially Discraft, and I've seen 25% off on those discs.
Tournaments:
I've seen larger fields at each tournament year to year. For the second year in a row a popular radio DJ has hosted a tournament at Munden Point. The tournament has more of a fun element to it, and this year already played, there was demand with the already established morning round, for a second afternoon round to meet the demand for additional players, so the DJ did it. There have also been a few pop-up tournaments at a few parks to see if establishing a permanent course is a possibility.
New Players:
Every once in a while, I pair up with a newbie and they have never heard of DGCR, UDisc maybe a few of them, McBeth, Heimburg, Tattar, etc, and courses close by. Don't understand the flight numbers, have explained it to a few, including in the Disc Store. A few months ago one dude said he was 15 rounds into playing and was using a hop, skip, and a jump on his runup, all over the place. I was feeling pretty good that day parking a few longer Par 3's, and he asked for tips. I showed him how to throw a Standstill, and he threw much better. I see more newer players in the city courses, but more veteran players in the rural courses, and more difficult courses.
In my area, Disc Golf growth is doing just fine. The growth seems to be for casual play, and they the newer player has also never heard of the PDGA, let alone pay for a membership.