There will be a special Norwegian showcase at this year's London Jazz Festival in mid-November: http://www.norway.org.uk/culture/music/scene+norway.htm
Besides acclaimed musicians such as Arve Henriksen, Mari Boine, Susanna and In the Country, the 8-day festival will also feature a reading by crime author Jo Nesbø, film and theater performances and much more. See the link for details.