Hi Hayley,
I believe that selection of dates for next year will be available when the new brochure is launched next month. (Although BGray has noticed that a couple of 2014 dates have already filtered on to the website) All 2014 dates will be available from the 2014 Europe & Worldwide brochure which is out in September.
Travelsphere works to a slightly different schedule, and as such the 2014 dates were launched when the 3rd edition Holiday Collection was published a couple of weeks ago.
Kindest regards,
Julia