The legs on console games not named GTA aren't like that.
Highest selling console exclusive this gen is Spiderman and that's around 16 million.
500 million is absurd but I'm sure that includes marketing. They'll recoup but the ROI probably won't be as high as previous joints.
Don't know how recent that number is but I know Smash Bros, Mario Kart 8 (semi-console exclusive?), and Pokemon have all sold 16-18 million units. Animal Crossing hit 13 mil in just a couple months and was breaking Call of Duty records