The PlayStation 4 already has a significant lead in the next-gen race, but expect that lead to widen over the next few weeks.
Destiny is here and for most of 2014, Sony has been telling everyone that it makes the most sense to purchase Bungie's blockbuster on the PS4. They're not wrong, either; consumers have definitely listened.
You've got that special Glacier White Destiny PS4 bundle and on top of that, let's not forget that a lot of gamers have been waiting for an excuse to leap aboard the next-gen bandwagon. Even if Destiny isn't #1 on their most-wanted list, there are bound to be games on the immediate horizon – this holiday season or during the first quarter of 2015 – and they're gonna want a PS4 or Xbox One pretty soon. Lastly, the word-of-mouth for the PS4 continues to be excellent while Xbox One is having difficulty shaking off many months of shaky PR.
Therefore, don't be surprised to see a sales surge for the PS4 in September. You'll see one for Xbox One, too, of course; it just won't be as large, I don't believe.