With a new console cycle seemingly ready to start sometime within this two year window, it doesn't surprise me to see a company like Gamestop putting a hold on future expansion for now. If any time was the right time this seems to be just about it. Given Gamestop's dependence on their used games market (I've read reports that claim Gamestop make as much as half its net profit from used games and hardware sales), and given how likely it is (based on rumors) that future Microsoft and Sony consoles (and games) will be designed and developed from the ground up in such a way as to prevent (and/or heavily discourage) the mass proliferation of used games sales as much as humanly possible (increased digital sales being a big part of this), I've no doubt that Gamestop is simply hedging its bets for now until such time as the next generation of console comes into its own, and the possible future of Gamestop's used game market becomes more predictable.
I wouldn't be surprised to find out that they already have an inside scoop about what to expect from the next gen Sony & Microsoft consoles, and that they'll be spending the next two years redesigning their own business to better handle the sudden change in how and where they make their money. I've no doubt that they can feel the hammer about to fall, and in that situation it would be foolhardy to charge forward in so much denial.