Nike has been releasing more shoes in GS sizes lately. We saw the Nike Air Foamposites releasing in these sizes for the first time this year in colorways such as the "Spider-Man" and the "Yeezy" ones.
It looks like Nike is going to be doing more when it comes to GS sizes. It appears that instead of men's sizes going from that 7.5-14 range, GS sizes will now be going up to even size 9 or 9.5
https://twitter.com/BALTsneakerShow/status/494341344266313728
This will definitely help some of the guys who wear the small men's sizes save money on some shoes buy purchasing the GS version instead. It also caters to hoopers as well, such as the WNBAers.
https://twitter.com/ernnytheman/status/494344601637900292
https://twitter.com/IcySoleOnline/status/494352297418170370
No official word yet from the swoosh, but we'll we see what they have in store for this coming soon.