I'm not going to argue the value of Datsyuk in regards to whether or not his jersey should be retired. The more interesting argument will be whether or not Datsyuk and Zetterberg are Hall of Famers in the end, and what the new definition of a Hall of Fame career is in the 21st century. Players don't put up the kind of obscene numbers as they did in the 80s, 90s, or early 2000s. The definition of what makes an elite player in the NHL has changed.
Assuming both players play to the extent of their ability until they can play no longer, lets say another 6 years or so, would we consider both Pavel and Hank Hall of Fame caliber? Neither will have lead the league in scoring. In all likelihood, neither will have lead to an incredible number of Cups as a primary player. In their time they will have been among, but never the best. On top of that, if Pavel leaves for the KHL after this contract, how does that effect his chances? We all recognize he is a once-in-a-lifetime talent as far as skill set goes, but how much is enough these days?
Are Datsyuk and Zetterberg's contributions to the sport in the end significant enough to get in when you consider players like Bure, Oates, and Mark Howe taking so long to get in, and players like Fedorov and Lindros still on the outside looking in?