I might be setting myself up for delusion with this, but wasn't there going to be more Vincent and Cloud interaction? Plus a while back you mentioned that the cast of characters never gets smaller...
I don't really want the answer to these questions, though. I love the suspense of it and how there is something of delayed gratification. Better yet, that you don't pander out every answer on demand for the readers. It's nice thinking like this every once in a while.