I don't really have any sympathy for the cat murderer, if he had a family i feel for them, but well i doubt he was a good family member if he did that so they will survive his absence.
The piper comes for their payment... the two ghost girls are really strong, one of them only got done by another strong ghost, so i ask myself how powerful will be their master... and i can think of some scenarios of what will happen with Miko... but at this point, this author has bamboozled me so many times and so majestically that i will stay with an open mind until the end.