I don't think is looking to retire soon. He has another 4-6 years in him left. Certainly will be difficult for him to remain the King of top spot, but he'll be around in the top 10 till very late of his career.

I still think he has at least 2-3 grand slams in him left. He just needs to stay fit and healthy. The problem will arise when he starts to question his ability to beat some players. As long as he stays confident, he will be a threat to anyone.

Having said that, I think Berdych will win Wimbledon, if he sustains his level of play and doesn't think about the result.