Stan is probably done winning slams. But, can sure come up with an occasional upset. With Andy, he is in the same territory as Novak was two weeks ago. Unless and until he proves otherwise, we should assume that he cannot win slams anymore. I am not saying he will never win. But, he needs to prove himself coming back from such a serious hip surgery.
Starting with 2003 Wimbledon, there have been 61 GSs so far. Of them 50 have been won by Fedalovic. The remaining 11 shared as follows: Stan and Murray 3 each, Roddick, Safin, Gaudio, JMDP and Cilic 1 each. Assuming Stan and Murray are done, we are left with 5 other slam winners, of which three have retired. Considering JMDP has backhand issues, we have only Cilic as a contender who has proven himself by winning a major. The lost generation sucks. The Gen X need to mature little bit and will take about three years at least. So, of the next 12 slams, it is reasonable to assume that 10 will be won by Fedalovic and a couple of odd ones by some others.
The only interesting thing is to figure out how these 10 will be shared by the Truly Talented Three.