I think the healthy upper end market is a reflection of the underlying dichotomy in global economies. There's two very separate stories evolving. The middle class are not doing as well as the upper class, hence the higher end market is increasingly gaining the attention of boat yards.
Sure but while the middle class has troubles (and that explains why the sales on small and medium sized yachts lowered) that would have not mean necessarily that on the upper class the interest in sailing was on the rise. I believe that is more an European thing (by the number of shipyards and new sailboats), at least in what regards sailing yachts.
Some more that come recently to the market or are at the design stage, coming from production Brands that used to make smaller boats:
The Wauquiez 65 by Berret-Racoupeau:
The Gunfleet 74 by Tony Castro
the Oyster 725 by Rob Humphreys
The Halberg Rassy 63 by German Frers
The Contest 72 by Georg Nissen
The CNB (Benetau) 76 by Philippe Briand
Jeanneau 64 by Philippe Briand
Ice 80 and 100 by Felci
The Mylius 18E35 by Alberto Simeone
Advanced 66 By Reichel-Pugh
and there are a lot more like the Salona 60 and 65 and the X6 from X yachts (posted recently).
Even some American brands (made in China) has presented new and more interesting boats, like the relatively new Hylas 63 by German Frers
Also on the small market of traditional and classic sailingboats we can see new big boats coming on:
The Spirit 110 and 130
The Farlie 77
The Pacific Seacraft 61 by Robert Perry
And also the Bestevaer series built by K&M and designed by Dykstra even if on this ones the size seems to have stabilized around the 55/56ft.