I don't know I can see Rafa getting six more, now that he seems to have overcome the Nole mental hurdle there's no reason why he can't win multiple more AO's and obviously RG titles. He may even sneak one or two Wimbledon's or USO titles.
Only 3 more episodes of Revenge to go. A lot of people told me it runs out of steam but IMO it get's better as it goes along. For the first ten or so episodes I would hardly say I was hooked. Unless it's just because I'm watching them all back to back.