PIPC is required to follow extensive guidelines for the management of its parks under the Statewide Comprehensive Outdoor Recreation Plan (SCORP), which was updated in 2003, and which REQUIRES public comment and SEQRs for any proposed development in its parks, just like private development: http://www.nysparks.com/agency/scorp.
(If that doesn't work, try the PIPC Site Map and look for SCORP under the Inside our Agency heading).
Much has changed in the twenty or thirty years since the discussion of a trailhead was floated for Awosting. As Rob suggested, Sam's Point will likely become the next primary entrance in Minnewaska's expansion, where the infrastructure already exists, and its natural features are far more inviting than Awostings. What is attractive about Awosting primarily is its unfragmented habitat (at least it was until Mr. Bradley began clearing roads). It's not a parcel containing blue-ribbon views, except perhaps for the area between Mud Pond and Verkeerderkill Falls, though it does contain several waterfalls (is Mr. Bradley's house not set beside one of them?). With improvements, it can certainly get you to the views above the Dwaar Kill and Palmagat, but I suspect after all of the scrutiny that has been and will continue to be focused there, PIPC must proceed very carefully should they choose to make improvements: indeed, SCORP invites extensive scrutiny.
Shevchenko was incorporated into the park last year, a parcel on the western ridge nearly as large as Awosting which had been discussed as another potential Minnewaska entrance; to date, no improvements have been proposed for this tract. Ditto for the entrance to Stony Kill Falls. The DEC acquired the 4,000 acre Witch's Hole above Napanoch Prison a couple of years ago, and nothing's been done to improve access there - a very long hike in north via the Smiley Road from Ellenville or southwest via the Smiley Road from Minnewaska.
What I'm suggesting here is that with over 6,000 protected acres added to the ridge in the past several years, the pattern has been for ridge managers TO DO NOTHING to improve access nor demonstrably increase the number of visitors to the ridge via these new parcels. Awosting may be more attractive for access because it flanks the busier eastern front. But again as Rob has suggested, neither capitol improvements nor the impetus to increase access to the ridge have been in the offing by ridge managers on these large, semi-wild parcels, except at Sam's Point.
If anyone wishes for Awosting to remain undeveloped like these other semi-wild parcels, I would suggest contacting PIPC should this deal move to closing.