Harmony of the Seas will be sailing out of Barcelona for the Summer 2016 as just announced by RCCL
ROYAL CARIBBEAN ANNOUNCES 2016 EUROPE AND ALASKA ADVENTURES | Royal Caribbean Press Center
Other news mentioned was Explorer of the Seas will be the largest cruise ship doing Alaska and Independence of the Seas is returning to the UK.
No news on Ovation of the Seas, and RCCL PR team said one new ship at a time, so awaiting that announcement later on.