no.
its wanted because people want an advantage that has been removed/fixed and they cant get that in modern wow. if wall jumping, which is the same premise, is not allowed- neither will this.
just cause vanilla, isnt justification for any and all exploits, bugs and the like- to be implemented. not only that, but this is something people demand blizzard recreate, altering the 1.12. to make sure it is included. how is that also any different from them recreating the loot bug from then as well? the only difference is, that both were game breaking but one gave players an advantage over others.
and the fact that people are dismissing that this 1.12 will be on the modern client, is absurd.