Prediction: PS4 will sell 20,000,000 by Dec 31. 2014

[MyCodenameIsIan]

Microsoft seems competitive in the states, Titanfall could be a game changer for them. Shooters sell consoles, and Microsoft are putting a lot of marketing power behind it.

Once the PS4 initial demand is met it's going to be down to software to drive sales. I'm not sure if Infamous has the widespread appeal to drive sales until the summer. I expect it to be received well critically, but the previous games have only been moderately successful.