Melpomene will definitely be out inspiring the masses. Mostly likely this will result in something bad. Like mass suicide attempts, or impromptu dancing in the street. The possibilities are as mercurial as her mood swings.
Mab will turn most of the city of Chicago into an arctic freezer, and then will manipulate and make faery deals with the city officials to create a perfect power base in the city for herself, and by extension, the Celts.
Lilith is probably going to cause some kind of unintentional stir, suddenly looking like the demon she used to be.
Anyone wanting to play with any of these lemme know!