Well, I'm not good at giving an impartial suggestion at the moment considering I'm part of the "wounded party" but here is the most I can manage:
I would prefer it if the decision would be something that would spur action in the realm. Be it (and not necessarily anyone of these) rebuilding the ally / reopening the land / restoring 'land-balance' because one is missing / (Trying to think of something that's not pro-Necro and totally failing at it >_< Urh, help?) / etc.
I think it would make a more interesting history to have a "what happens next" instead of ending it at implementing a large handicap / end-result (e.g. completely close/open the land) and just end it right there. Something that continues the story, sort of like the events in AL.
As to the "why" I would prefer it so. I would like to see the most made out of the situation, and what I think that could be is spurring more activity in the realm. The realm is really quiet of the late.
On the other hand, I'm not certain if this is possible without implementations that would be "expensive" on the coding side or the organization side or both. And you could argue that it might be too much to have a "higher-power" trigger a reaction/activity from players rather than let players take initiative themselves to pick up from the after-effect of having all alliances of a land down.
After writing this, I wonder if I'm even making sense... also being impartial is hard, dangit. Not even sure if this is..