One plot point I came up with is in The Hunter; you see, Snow's job is supposed to be a secret. But, after one mission, which I'm still trying to work out, The Hunter gets out a bit. Normally, Snow's eyes are blue, but, now, he has one blue eye and a yellow eye of The Hunter. The people know The Hunter's eye color, so he has to keep things a secret until he can fix it. On top of that, he can't transform.
In Ariel, the Seven Archangels have gotten together and the Seven Princes of Hell have revealed themselves. This plot point involves the Archangels going to go take down Leviathan, who's situated in the waters near Japan. Ariel and Gabriel go out and get into a fight with him, but they can't reach him. So Michael, who's on the other side of the world, cuts a split into the ocean so that they can. I know Leviathan's going to get out of the water, but I can't think of anything else after that.