The finnish words are pretty clear on this. Ei myöhemmin kuin ensi vuonna, hän sanoo. Not later than next year, he says.
The next phone won't be formally/officially announced (details published etc) & available (on store shelves or in mailboxes etc) until 2015.
The interview also specify that is unlikely that a new model will come on 'this half of the year' because Jolla is focusing on the 'massive' update during the fall. So: - this year is s/w updates - next year is the time for new h/w