I'm currently wading through a certain online bookshop emporium looking for new titles to add to the Euro Crime bibliographies. When I've finished I will refresh the pages on the website (may be a few days yet though). However I have discovered that next year's Karin Fossum (in English translation) will be the elusive seventh book in the Inspector Sejer series, The Murder of Harriet Krohn, published 3 July 2014 by Harvill Secker. I hope this is where we discover what happened to his psychologist girlfriend.
I've also discovered that an eleventh book in the series was published in Norway this year - Carmen Zita and Death - which I hope will be 2015's book in translation.