If this site is anything to go by GTA5 going to be one juggernaut of a game. I'm predicting it will sell over 20 million units. Make it happen Ps3 and xbox 360 fans.
I agree with you that next gen consoles might kill sales. But you have to factor into account that the ps3 and xbox has more than double the install base now than when GTA 4 first launched. Taking that into account I still think 20 million is achievable.
Jeez just be patient. I mean it's obviously impressive but couldn't they have used their time to do something more productive? The game's out this year, just wait.
that's some dedication and free time to do this hopefully they're wrong and the map is even bigger !