Vitalik said the "ice age will be delayed anyways" (with metropolis).
It's not that important or applicable either way, though on the other hand that given network going to be mucking around with mining rewards anyway because we will be delaying the ice age. I don't see any extreme case in either direction, I guess.
Maybe I'm blind: But I can't seem to find any details about the new mechanics of the difficulty bomb, any adjustments or even a total removal? Where is this specified? Could anyone guide me? Will metropolis delay the difficulty bomb?