Undelivered Air Canada 787 heading to Iqaluit, Canada, Why?

So this morning, a lot of 787 watcher, including myself observed that Boeing is sending a 787 that is scheduled to be delivered to Air Canada later this month to Iqaluit, Canada.  I'm at a loss to explain why though I'm going to speculate.

Iqaluit has an airport that used for extreme cold weather testing of aircraft.  Boeing has done cold weather testing on the 787 so this may be additional testing of a fully kitted out Air Canada 787 being done for the airline.  The aircraft ZA616 (LN 254, C-GHQQ) was flown to Portland, Or. for painting and then to Boeing Field which is unusual except Boeing's Test Flight group is headquartered there.  It is possible that the test flight crews were fitting out the aircraft with test flight equipment and the engineers were running tests prior to flying to Canada.  Again this is speculation on my part but it's the best possible explanation.