Not exactly a fan of his, but I think this will (most likely) happen. In comparison to his pitiful main rival Djokovic (who has won as many slams in the past 2 years as old man Federer), he's still in far less deterioration, he has been slowed down a little, but he's still extremely fresh and physically fit for someone of the age of 28. I've (mistakenly) counted out Nadal several times in the past, and I won't make the same mistake, he'll keep coming back from the dead till it's all over. There isn't exactly much new talent on the tour, and even then, most of the (relatively) young players aren't great on clay which is hwere nadal will continue to dominate. The "rising" stars are already 23, 24, 25 which is supposed to be their peak, it will take someone who's a teenager now to dethrone nadal. I'm predicted he wins french open every year (except maybe once) till he's 33, 34, and win maybe 1-2 slams off of clay.