If the UU is an exaggeration of our own world, and the people in it are personifications of ideas. Then I think it would fit in quite well. The christian right are getting bold, and have power, and seem to be not meek about using that power.
As yet I don't think religion has really been brought into the books, but hey, we're looking forward to 'the son of satan' being introduced. that's gotta account for something, aside the fact that thor proclaims to be an asgardian god, and that perhaps (my theory), that the valkyrie character is little more than thors biggest fan, perhaps thors liberal views and and supposed heritage are having an effect on the youth of america. There would need to be a display of this boldness, a backlash from some organisation associated with that particular religious ground.
This said, i'm unsure as to whether cloak and dagger had an dealings with the avengers in the 616, so would it be apt to transpose these characters to this book, given that the outlay I have given is a more socio-political one, and that the ultimates is the most apt book in the line?