#7 - April 12, 2009, 1:50 a.m.
We have stated, again and again, that we have no current plans for this.
And today this suggestion comes from a Blood Elf character, who would be unable to even exist in a pre-TBC WoW. ;-)
We want WoW to continue moving forwards. While this does not preclude the possibility of "vanilla" or progression-style realms, at this time we have no plans for such a feature.