I thought there was a thread for Andrew Winch Designs here already but I didn't see any while searching. While going through their website I noticed a new proposal done by them for the new Royal Yacht "Britannia". It is just a proposal for now but interesting, around the 160-meter mark.
Andrew Winch confirms the launch of the 99-meter superyacht at Feadship De Vries in an interview with another media outlet.
He also comments of a 62-meter from Van Lent (exterior and interior design by them (AWD)), a 64-meter as well as a 92-meter all for launch this year.
Andrew Winch has a newly designed website for Winch Design... you can check it out here... http://www.winchdesign.com/
His design firm is said to be responsible for the new Jeanneau Yacht 65, 57 and 54 interiors. I have not seen one for real, after look at the web link you provided for his site and his stunning work I imagine his team is the real group charged with the Jeanneau sailing division of Group Beneteau.