While the age of innocence would be nice to return to it isn't possible. This is a philosophy that doesn't apply to MMPOGs specifically either. Not to long ago there was actually a pretty good article about the "golden age theory" at
http://wizards.com/default.asp?x=mtgcom/daily/mc6. Matt Cavota explained very well why all players tend to think that how the game looked when they started was the "golden age" this is also true to MMPOGs. For most people the golden game was the game they started with. For many of us that is "EverQuest" for others it might be another game but for all of us we compare all of our future mmos to the game that took away our innocence.