So, the question of the near future comes up every so often in the Eberron discord and it's a pretty interesting thought experiment. Keith gives some very good threads to go on here and the one I kind of like to tug on is the Lord of Blades making some moves.
So far, the Mourning hasn't shown to have much of an effect on warforged, so I like the idea that the Lord of Blades uses that to gain an edge on the Five Nations. I'm not sure that he would be working for a greater power, at least not directly. What I would say in five years time is that he's come into open conflict with one of the Five Nations and is winning, possibly because of something he found in the Mournland.