This actually looks pretty legit so if you don't want to see the map until you pop in the game don't click on the link below.
http://i7.minus.com/imsm6gvMswPuY.jpg
So if you did click on the link, what do you think?
UPDATE:
So this map apparently is legit; it's the one in the strategy guide.
R* responded by releasing a map that tries to give a sense of scale by comparing the overhead (character switching) shots from the trailer and showing you how big they are on the map that leaked.
http://b-i.forbesimg.com/davidthier/files/2013/09/1378822017-9999954.jpg
It does actually make the city appear a bit bigger to me. Things I thought were alleyways before are actually full streets.
http://i7.minus.com/imsm6gvMswPuY.jpg
So if you did click on the link, what do you think?
UPDATE:
So this map apparently is legit; it's the one in the strategy guide.
R* responded by releasing a map that tries to give a sense of scale by comparing the overhead (character switching) shots from the trailer and showing you how big they are on the map that leaked.
http://b-i.forbesimg.com/davidthier/files/2013/09/1378822017-9999954.jpg
It does actually make the city appear a bit bigger to me. Things I thought were alleyways before are actually full streets.