It's about time Novak won another Slam. He had a bit of a crisis at the beginning of last year and his clay court performance was nowhere near to 2009, where he reached two Masters finals (lost both to Nadal
Now the question is can he keep it up? Djokovic said he's more focused now and he's arguably playing the best tennis of his career.
Clay court season will be crucial. If Nadal manages to defend all the points from last year, I don't think anyone has a chance of surpassing him in the rankings. He has also reached the final of last 4 Wimbeldons he played (lost 2, won 2), so that doesn't worry me. Seeing that Federer didn't defend his AO title, it puts less pressure on Nadal to defend USO.
Djokovic is a serious threat. But like he said himself... Nadal and Federer are still the players to beat.