We just picked up a new 2015 Trailhawk 2 days ago. Not sure why it has gone unsold but got a pretty nice deal. First mod will the the spare tire flip. Time will tell after that. No immediate plans as I have a JK on 37s to use off road.
Eddie has a write-up about flipping your spare tire to gain more storage. It involves very little. Merely flipping the spare upside down and replacing the factory tiedown bolt with a shorter one to secure the tire in place. Very easily done. Took less than 30 minutes.