I still believe those two WoW (Current expansion and Classic) are not the same game and are not for the same crowd.
I am also a firm believer that they should put no major change in Classic, so both WoW will be distinct from one and other
But back to original topic, are we going to relive 2004 once again ? Ishhhhh. No.
Speaking for myself, I started playing WoW when I was maybe 30 years old. And I expect that when classic is going to come out I will be 44/45.
So yeah, Like I'm going to buy 6 redbulls and Doritos for the next few months ? :P