I may be remembering incorrectly, but wasn't it
DCL's habit to release future itineraries in October? And last year was kind of an outlier in that not only were they late but they also did not release the full year as in the past.
Of course that may be explained by the fact that they now have a much more complicated sailing schedule with essentially two wandering ships in addition to their accustomed routes.
I pulled these dates from the opening day threads and a search for the later ones. They weren't tracked before the CC levels distinguished the different opening dates for different levels.
Magic & Wonder 2009 - released 12/4/07
Magic & Wonder 2010 - released 10/14/08
Magic 2011 - released 9/21/09
Wonder 2011 - released 9/21/09
Dream 2011 - released 11/9/09
Magic 2012 - Jan - Mar released 10/19/10
Wonder 2012 - Jan - Apr released 10/19/10
Wonder 2012 - May - EOY released 4/7/11
Wonder 2012 - Hawaii Oct released 9/23/11
Dream 2012 - Jan - Aug released 10/19/10
Fantasy 2012 - MV - Aug released 10/19/10
Magic 2013 - 12/15/12 - 8/31/2013 released 1/25/12
Wonder 2013 - 12/9/12 - 9/2013 released 1/25/12
Dream 2013 - through 11/10/13 released 10/18/11
Fantasy 2013 - full year released 10/18/11
Magic 2014 - Jan - May released 12/5/12
Magic 2014 - May - Dec released 2/13/13
Wonder 2014 - Jan - May released 12/5/12
Wonder 2014 - May - mid-Oct released 2/13/13
Wonder 2014 - mid-Oct - Dec released 06/03/13
Dream 2014 - Jan - Aug released 12/5/12
Dream 2014 - Aug - Dec released 2/13/13
Fantasy 2014 - Jan - Aug released 12/5/12
Fantasy 2014 - Aug - Dec released 2/13/13