Re: The Fedal era seems to be completely over or will be by the end of this year
I would think Fed will still be a contender until end of 2013. For Nadal, it really depends if he can defend FO as winning at least 1 slam a year gives him the confidence and the belief that he can still compete with the best.
If Clay Warrior fails to win any slams in 2012 then his confidence will plummet and we might see the beginning of the end. We are potentially entering a Djokovic/Murray era but that would only happen if the Scot can bag a slam within the next 12-18 months. Djokovic can have a big say in how things go. If he picks up the French Open then Nadal's clay domination will be over aswell.