I guess this is not secret. Myself and 2 others were diving there on Friday. A guy stopped by to talk with us, he had been drone photographing us and wanted to ask if it was OK. He was one of the new owners, a family owned business. Himself, his daughter and 2 cousins are currently getting certified and other family members are already certified. According to him, they have great plans for the quarry and it WILL remain a dive park. Currently they are cutting the grass, working on the roads, rebuilding the fence and in general cleaning up the place. The current web site is going to be upgraded soon with more details (it recently crashed and they are waiting to get it upgraded before restoring it so that is why it's down now). According to him, the name will retain "Fantasy Lake" because it is so well known but will be expanded, I forget exactly what but something like "Fantasy Lake Dive Adventure (not exactly correct but you get the idea)".
Bottom line, according to one of the new owners, it will remain a dive spot and be upgraded so it's looking like great things are in store for the quarry.
If you are ever out there and see divers in the old double hose regs, come say hello. It's either myself or one of my buddies.