This really brings up uncomfortable questions. Do these two Beasts(and two Lauras) have unique souls? Or is it somehow divided? Or is a literal copy of a soul made? That goes for all the clones bad Hank made, but they're all dead now so it doesn't matter.
Most likely, knowing Percy, the bad Hank will be killed and the good Hank will be left wondering it he's the real one or not, leaving the next writer to make a solution.