The team discussed the 2014 dates on a podcast about a month ago.
They think (and don't know for sure) that the dates for 2014 won't be released this year but the beginning of 2014.
So that means that you just have to book a dummy date on this cruise and when PCC5.0 will be announched then move that dummy date to PCC5.0 date.
Plus normally they alternate the PCC with DISaPalooza so that would mean PCC5.0 in 2015.......