It’s not difficult to type in “2 Years”, in the Forum Search bar, but here are examples of Posters saying “2 Years”, as the magic number for Classic’s Lifespan (whether it be people being bored, wanting a different form of WoW, or actual Classic doomsday):
You said:
Meaning, at some point, Classic will die. 'Cause you even said:
Why would you say these things, if you didn’t think Classic was going to “die”, eventually? Hence, why I brought up the “2 Year” remarks, since that seems to be some general consensus among a few Forum Posters, of the Lifespan of Classic. It’s not going to be that soon. Unless you have a guess in when Classic will be deceased? 
No, you’re ignoring my point
According to you. There’s some who believe Retail is dead. Just like you claim that (in regards to Classic):
You’re ignoring mine
And what is substantial? 'Cause even you considered a million Soloers as “dead”, simply for not participating in every aspect of the game
I’m just following your lead. I even asked you to define “can’t”
Then the game can still be alive, even if one (or many) doesn’t play through all of its content
You didn’t tell me to research for you, but I did, above. This just seems to be a general consensus, among some fellow members of the Classic community
I’m not 'cause you admitted to it, earlier:
I’ve said many things that are relevant. You’re just choosing to ignore them
It is relevant. 'Cause you claim that:
When 40 is not needed to complete said content
OK, so it’s not “dead” if there are 1 million Soloers, then. So, that statement, that you said earlier is incorrect
Exactly, now you’re getting it
But the idea was and influenced others to join in creating said servers. That’s how it works