There seems to be a so called leak
of Game Informer's GTAV preview floating around, that certain sites
are picking up on. While it is certainly possible for print issues to reach some subscribers before Thursday November 8th (or leaked elsewhere, considering there are millions to be printed) the example you are seeing is indeed a fake.
A good tip to always remember: If it's not on GTAV.net
, it is most certainly a fake. That's why you didn't see the site publish all those other faked linkedin accounts or CVs that pointed to an October release, because they didn't have any truth to them. The same applies for all the other so called leaks, like the "Adrian" main character one.
Once any real information comes from the Game Informer preview, expect it to be up on GTAV.net soon thereafter.
EDIT:This rumor has now been confirmed as a FAKE as well by Game Informer's Managing Editor Matt Bertz via twitterhttps://twitter.com/mattbertz/status/265486448076132353 This post has been edited by Adriaan on Monday, Nov 5 2012, 17:00