Yeah, that was left hanging a bit - the Shadow Proclamation, I mean. I'm actually a bit ambiguous about how it was portrayed at all, because the way Nine had talked about it in the first place (when talking to the Nestene Consciousness in Rose) made it sound like it was an inter-galactic agreement (like the Kyoto Treaty), not an organisation (like the UN). But if they were going to make it into an actual organisation, they might have made a bit more use of it - for example, maybe the Judoon could have been dispatched to do the job of taking the Earth back home, given that it's already been established they can move hospitals to the moon.

Anyway, now we've got it, I would kind of like to see more of it in future. It's actually capable of fulfilling the same kind of plot function as Gallifrey and the Time Lords did in the old series - viz., a higher authority to which the Doctor must answer, and which sometimes uses him to do its dirty work. That could be fun, actually.