The pictures I've seen from the Quantum make me think there's a good chance it'll have a/c but I just haven't read anything official.
Of course - our QOS cruise is over New Year's and I'm not sure we'll have 100 degree temps and 95% humidity to worry about. Still curious, though...
103 nights at sea and counting...
Caribbean Princess (E. Caribbean) March 2006
Disney Wonder (Bahamas) July 2007
Royal Caribbean Monarch of the Seas (Baja Mexico) May 2008
Royal Caribbean Mariner of the Seas (Mexican Riviera) October 2009
Sapphire Princess (Alaska) June 2010
Royal Caribbean Oasis of the Seas (E. Caribbean) September 2010
Carnival Paradise (Baja Mexico) January 2011
Crown Princess (W. Caribbean) April 2011
Ruby Princess (E. Caribbean) April 2012
Crown Princess (W. Caribbean) March 2013
Royal Caribbean Allure of the Seas (W. Caribbean) June 2013
Disney Dream (Bahamas) December 2013
Royal Caribbean Allure of the Seas (E. Caribbean) April 2014
Royal Caribbean Independence of the Seas (E. Caribbean) March 2015
Island Princess (Grand Mediterranean) June 2015
Crown Princess (Mexican Riviera) November 2015