Okay, already thought something like that.
But you see that 2014 was really heavily towards PS4, while 2015 so far was not as extreme. Call it hardselling Xbox, weak PS4, off season or saviour spencer.
Personally, I also predicted a 100k+ gap, but it's not for sure.
Definitively, PS4 was selling usually nearly 2:1 compared to XB1, now, the recently months both are really close, even in June with Batman the gap was not massive.
But is important to mention that in 2014 XB1 holidays was really strong, compared to a "mediocre" PS4 holidays season, that's not gonna happen this year.