After playing the two Rosapenna layouts, I have a few thoughts:
Sandy Hills, while wild and difficult, is not as impossible as what has been said here. I thought there were several scoring opportunities (#8, #13-#15) that could offset the few inevitable bogeys here and there. It could use a bit more room in some places (#2, #5, #10, #18 come to mind). I'm sure I'm biased by the fact I had my best round of the trip there, but I hit some wayward shots and was able to find them and chip out and still score with a few birdies thrown in.
The Old Tom was a great fun and quirky test, as the oldest 9 along the beach was a great old test in the wind, and the back nine was a wild affair with hills, great views, and some fun holes. I did not get to see the new 9, as it was closed. It appears to be on the same type of dunes as #9, #10 and #17-#18 of the Sandy Hills course. For me, I think the "newest" holes of the Old Tom course (according to the routing map in the hotel, Colt and Morrison were responsible for these holes) are a fun complement to the Old Tom front 9. While dangerous with shots crossing roads three times, and one more crossing from a green to a tee, the roads weren't busy, and I don't see that as a huge problem.
Are they planning on taking the hill 9 out of play totally? It would be tough to lose those holes as they are a great and fun complement to the others, and there really are 6 or 7 great greens over there. I'm sure a layout with the Old Tom 9 and the Ruddy 9 would be fine, but the hill 9 really made for a fun finish (with great views of the bay) of the 36 hole day.
There also was a little dunesy pitch & putt there that looked fun, but we didn't have time to check it out.