Just got off the Dream and I asked the CD and several other people regarding this and they all said they hadn't been told anything about this.
I was concerned because this was our 8th cruise on CCL and one more before going Platinum but then again it really doesn't make that much difference to us because we normally book a suite anyway and receive "most" of the Platinum perks as well.
Dec.2002 CCL - Destiny
Nov.2003 RCL - Monarch of the Sea
Dec.2004 RCL - Majesty of the Sea
Nov.2005 CCL - Spirit
Aug.2007 PCL - Crown Princess
Feb.2008 CCL - Spirit
Oct.2009 CCL - Elation
Jan.2010 CCL - Splender
Feb.2011 CCL - Spirit (Cabo)
Jul. 2011 CCL -Spirit (Alaska)
Oct.2011 CCL- Dream-(W.Caribbean)
Feb.2012 CCL - Spirit ( Cabo)
Dec. 2012 CCL- Splendor ( Cabo)