One can dream, and it's obvious a large chunk of the community wants Ladders back. As has been discussed--the opinion of them between EU and NA are vastly different in a lot of areas. But since most of the Devs are EU, the decision to ever do anything about bringing them back will likely remain there with that opinion siding with EU.
Simply a discussion though, but I think it largely shows how many people want them back via the poll and it is something that Devs should strongly consider for NA (at the very least). Give us back Fun. Right now the Maps feel too monotonous and grind-like. The combat happens in the same place almost every time due to how the maps are designed and played, ladders throw a kink in that and re-introduce an element that stirs the pot.
Food for thought.