I have a hunch that FR will move more of its operation TO GLA by summer 2017.
I believe GLA has an expansion in the pipeline that is starting in a few months in view of being completed for S17. somewhere in the region of 4 new stands to accommodate further aircraft at peak times.
Tie this in with the fact FR weren't allowed to operate to destinations already served by 2 carriers for the first two years and it makes a lot of sense.
The only reason PIK is under government control is because they wanted votes for the Independence campaign. A total waste pf public money keeping it going.