As far as I am aware, FlyMe have only entered into an agreement to purchase 25% of RiverDon which owns 51% of GSS. The deal hasn't gone through yet.
Representitives of FlyMe were at Stansted on either Tuesday or Wednesday this week, presumably discussing their plans before signing anything.
The rumour amongst GSS pilots is that IF it goes ahead, it will probably be at the start of the winter schedule next year (October 07).