Vyreth, they may very well do that, but I see a problem there.
Let's take Pavain, for example. He is someone that the Angel crew needs in permenant storage. Not the Senior partners. If they put him in the holding dimension, he is free to make any deals with the senior partners and their like. In his little cell, he can do squat. But, so far the senior partners have honored their agreements to the amount you would expect from a LE lawyer. I have a feeling that, if they go this route, it'll be the new liason, Hamilton?, that ends up with the pendant.
But that's just my wild guess.