A couple of quotes from Akin:-
I will extend the trial of 4 x 4 rotation to the 31st of December 2014. At this point we will review and decide whether or not it is worth the additional cost to the business. I realize that some persons will not be happy with this; however, please make it abundantly clear that we will be happy for them to leave on this issue.
Gentlemen, I have noticed a reluctance to commence weekend crew travel. This is TOTALLY UNACCEPTABLE. I will therefore commence an enforcement of this travel plan. Those who wish not to travel over the weekend need to look for alternative appointments immediately.
But on testing the water, it seems that when you state your intention to leave, they won't let you go as they are short of pilots.