I flew to KEF a few weeks ago from MSP (the 2nd to last flight from MSP, and the last flight back this year). Sorry to see service so dramatically cut back, as service from MSP will not start until next May.
As a Saga Goldcard holder, I was upgraded on both legs, and both a/c had the new seats and inflight seatback entertainment system. Nice.
I hope you have a nice trip.