It's been awhile since I've chimed in on LCT. Alan and I were on this cruise this past August (2016). Scoresbysund is outstanding. I loved going to the Arctic Ice, wish we'd seen more polar bear (that's always the luck of the draw), had a great walrus encounter and thoroughly enjoyed the east coast of Greenland. Oh, those icebergs! We booked the land extension in Iceland. Unfortunately, the country is currently over touristed. Of course you should go on the Golden Circle tour if possible but be ready for hordes of tourists. Silversea offered great hikes and zodiac tours and we enjoyed the ship. Hope you guys have a wonderful time. Here's what I've written about the cruise so far:
http://myitchytravelfeet.com/arctic-cruise/ Lots more to come.