To tie into what I said to Prospalz above, part of the problem is that ultimately no amount of sword and sorcery can, alone, solve the problem of "you need to conquer a bunch of planets," except by "make a desert and call it peace," which I'm worried may not technically fulfill the requirements, and which would certainly be bad for Hunger's sanity, party relationships, and player satisfaction.
We need supernatural majesty and charisma to pull this off, not just a combat style... and we need something very enhanced in that regard, to cut through (heh) the maluses and obstacles imposed by the unmitigated Doom of the Tyrant and now by our trait of Uttermost. And the only really large source of supernatural charisma we know we have is the Evening Sky; the Ring and Blade are mostly specialized in other areas.
This is probably the best Evening Sky upgrade we're going to see for a long time; I'm pretty sure it's the best upgrade for it that we've seen yet. If not now, when?