I've scoured the Internet trying to find more info about the modified plans. Nothing is available, not even from NYS parks or state.gov sites. Just the original ~50-ish site PDF. That means either it's being hidden, the plans are not done yet, or it is stalled at some point along the way.
I suspect the latter is the case. Perhaps it has failed to survive budget cuts year after year. Whatever the ill effects of the campground there may be may not be felt for a long time. And who knows what may happen to the plan?