Well, so far in May the PS3 sold almost as much (sometimes a little more) than the XB1...
My expectation is that many people pre-ordered the kinect free xb1, so on the second week of June there will be some kind of sales bump, maybe it will get close to the PS4 numbers for a week, then go back in it's place just a little above PS3 numbers...
Honestly, since Titanfall released I think the hype around the console is un-recoverable, I don't see this machine selling above 50k a week on a regular basis, ever... maybe close to 100k on big release dates (Halo remake, Sunset Overdrive, Halo 5, etc.) ... si it will have GameCube or og xbox level of sales.
The only market where it will be competitive is North America, maybe the UK and obviously in Brasil nobody will buy an 1800$ PS4 (I would not)!
