So, Rockstar just released some fun facts about GTA (Online). What struck me, was that it says there are over 33,8 million global players. A massive 650.000 above what VGChartz currently has it at. 

What do you think about GTA success and how will the Xbox One, PS4 and PC versions do? Is 50 million possible?

Source: http://socialclub.rockstargames.com/news/article/52349/gta-online-census-the-story-so-far

Edit: haha yeah, I guess I failed that one, uhum ... Digital ... yeah ...

Digital sales aren't counted on this site.

Used copies doe......

Yep, easy 50,000,000 all version combinet.

Good point! Hadn't thought of that. Still though, massive sales.

Yea, I think a lot of people are gonna buy gta V this holiday as well as in 2015 so I do think that 50 mill combined is possible

Used copies, loaned copies, digital sales. IMO tracking is pretty good.

Digital? I'd go as far as to say it's overtracked.

Even a 2.5% attach rate digital on 34m is 850k .....

Will reach 50m eventually though.

Digital sales, used sales, people not playing online at all....

far too many variables to come to such a conclusion.

Nah, not everyone plays online or even has online.