Dream's father seems to have Destiny as his favourite child. Yet he himself does not follow a chronological existence.
I was thinking the other day, with this embodiment of stars as people, that this is almost some sort of kooky science fiction story.
As for Hope, we have now seen the death of Hope. If that's allegorical, then we are in for a grim ending. As the mad star's infection seems to have spread amongst the other stars, I'm envisaging a mass lobotomy as the conclusion to this story. The Cat Dream isn't trapped in the event horizon so I'm guessing that's the mechanism by which Dream escapes.