There's another promo on upgrades in the latest edition of the Blue Wings magazine under the heading 'Best from partners'
(page 83):
Northern Europe upgrades 5000 points
Europe upgrades 7000 points.
Sales period runs from 3-23 Jan.
I’m onboard AY433 right now. IMO it’s funny that I have to google the latest Blue Wings magazine to find this offer, they don’t have the latest magazine onboard or in Nordic Sky portal.