I am hoping to get one of my two unused SWUs extended into February or even March/April. Today I was able to have the other one put towards a domestic transcon 777 flight I have booked for December and had upgraded with a CR1. The CR1 was put back into my account and will expire in June and one of my SWU was put against that booking. I do have one other SWU being used for a transPac in January but only the domestic flight was confirmed in C (NC), so I hope the Pacific flights get upgraded prior to departure or at the gate. Return has all been confirmed, so may have one more with 2-weeks left in January!