Our hall isn't empty but it def isn't growing. Just very stagnant. And very old. Extrapolate out 20 years and the Borg is in major trouble.
This is pretty much exactly what's going on in my area (though they did recently lose one seat filler, and I'm never going back!). I'd say at least half of the BOE in my wife's congregation will be senile or dead in 10 years, with relatively few prospects for replacement. There are a few MSes that will likely get appointed in a few years, but after that I think the pool will run dry. There are only a couple boys in their teens, and they demonstrate absolutely no desire to "reach out" for more obligation. Of the men between 23 (you know, mandatory MS age) and 30, none are MSes.
The stagnation (maybe a slight ~2%ish decline in the last 5 years) in attendance is also a bad sign in itself. The suburb that the congregation is centered in is growing rapidly. 15-20 years ago, there would be a local congregation splitting every couple years. A new KH was needed pretty regularly as well. I think it's been 12 years since a KH was built anywhere nearby (my FIL is pretty high up on the RBC, and never gets an assignment within an hour's drive, and quite frequently has to drive 2-4 hours away to the build). I can't remember the last time a congregation split, but it's been well over a decade, and the last ones to split were the spanish congregations. Even the growth there seems to have stalled. When a cult can't even recruit the "fish out of water" of recent immigrants, you know they're in trouble.