I dont think so
In less then a month a huge majorrity will realise that todays gameplay is so much better.
Combat, classes, bossmobs .. and so many things that weren't in Vanilla.
We all will try and most will quickly realise... the game has evolved for the good...
I have a whole toher take on classic servers..
Make them part of the current WoW game..
Bring them all back to max level..
And allow people to play Vanilla as a timetravel destination..
To make it even better, add some diablo style to it..
So people can choose from several difficulty levels.
Also let them choose between PvE and PvP
And add some form of progression, so content opens further based on progression...
This allows people to replay full expansions for the content
While enjoying that as part as a 2018 game..
instead of playing the 2004 game..
As much as i loved Vanilla...
I also can still see and feel it flaws..
So maybe Blizzard should make us a better vanilla experience
and me.. i am allready looking forward to Wrath of the Lichking..
Best MMO experiences : EQ(PvE), DAoC(PvP), WoW(total package) LOTRO (worldfeel) GW2 (Artstyle and animations and worlddesign) SWTOR (Story immersion) TSW (story) ESO (character advancement)