That would be an interesting wonder. I may like that mechanic better than the one we are currently using for the prophecy of ragnarok. The name would have to be changed though, it would be to confusing with the relgion (though I read that book so I know where you are coming from).
Alright...now simply because I'm a stickler for alusions.
My argument:
IF something like this was implemented, I want the name to definately be the
House of Leaves. Why? Because allusions are fun.
The problem with the religion is understandable, but I dont see it as necessarily a Sheiam or the vale having exclusive rights to this wonder. Granted it LENDS itself to them - but I see the wonder as an anomoly - something that just occurs. I was actually thinking that perhaps it would be less of a "wonder built" and more of a "wonder found". If the armeggedon counter reached X - then the city in the world with Y, would get the
House of Leaves. For free. As it is, it could function as either a rubber band effect, OR expediancy of armeggedon.
X and Y:
I'm thinking that when the Counter hits 35? Maybe 40?
Y - Perhaps the city that has the oldest unit in it. (that is to say, of all units in all cities, the one that was built the earliest would get this wonder)
The allusion is half of my joy for the wonder. The precepitation toward armeggedon is a perk.
-Qes
EDIT: Also, "leaves" being a problem for the name because of the Fellowship religion -maintains the madness and confusion. If anything the "Misnomer" increases the flavor instead of detracting from it.