The other day, Rockstar Games sent out an email announcing a Special Edition and Collector's Edition of GTA V. Both editions include a blueprint map of Los Santos, the city from the game. As you can see it is just a part of the map, but at least it's something. Hopefully we will get more information about the GTA V map and other gameplay features soon.
GTA V will be released on September 17, 2013 for the Xbox 360 and PlayStation 3. You can pre-order this game on Amazon. (PS3)