It's certainly possible. And with Hamilton's early bad luck, start issues and potential engine penalties before the end of the season, the odds are still in Rosberg's favor... except for his tendency to choke at inopportune times. I think most people would say that Hamilton can win another WDC simply by beating Nico - which we've seen happen numerous times. But in order to secure his first WDC, Nico needs to beat Hamilton and also needs Hamilton to experience some more bad luck. Given that the Mercedes W07 (especially Hamilton's power units) isn't so bulletproof this year, I can see that happening.

Nico reminds me of IRL driver Will Power: very capable, but often cracks under pressure. Maybe he'll finally break that cycle though.