I consider the shorts canon for this RP and any sequels or prequels, but the marriage can be annulled by Galfor in the epilogue without causing any real problems. Blackie found somebody who actually cares about her and she can actually enjoy being with as opposed to being forced into a marriage with Glurdlesckletch (sp?). They'll start actually going out and eventually marry in a while when the demon invasion resolves. The fact that he was creative in matching her really impressed her.
About Gameboy, I haven't gotten any sort of reply from Big. We can consider him MIA, but he seems to fade in and out so let's not count him out just yet.
Bloodbath will be pardoned with the rest of the villains and villain sympathizers who help save the city. If she doesn't go back to crime, she can have a normal life or turn hero. This goes for any of the villains or villain sympathizers. Really the only reason the heroes were mean to her was that she was in with the villains, and we've already resolved that the heroes didn't abandon the city. The original Titans were just horribly defeated, then Star spent a while with her people getting ready to retake the city. The fighting can go on indefinitely, but I think the "we need to save the city to have a city to fight over" thing will at least give us a closing to the current RP. Neo and I already have plans for the sequel, but no date.
BTW the Sons are arbitrarily spread out around the city. Use your imagination. They're not in the same place.