I can't speak for my bosses, but I'd be knocked off my rocker if ATVs were ever permitted in the Bluestone. Now, there will be disc golf and hiking trails, and I'd suspect mountain biking trails at some point down the line. That property is being developed very carefully.
As for the ISC, there needs to be substantially more lodging and dining for that to work as envisioned. You can host a million AAU tournaments, but families aren't driving from Norfolk to stay at the Fincastle Motor Inn and eat at Hardee's.