Harry is a very powerful wizard, but he lacks control. He leaks power all over the place, and because of this, people around him have acquired powers of their own. Additionally, the power they're leeching off from Harry has extended their lifetimes.
What will those powers be? Now that Murphy will be around for the next 100 years to kick Harry for being a chauvinist, will he ever change? Will Harry and John ever stop bantering and start fucking, given an extra decade or two? Or will they do both at the same time? Will Hendricks apply philosophy to his own powers? Will Kincaid get powers totally not appropriate for the Hellhound (like growing flowers or something)? Explore the possibilities, anon.
Leaking Power
What will those powers be? Now that Murphy will be around for the next 100 years to kick Harry for being a chauvinist, will he ever change? Will Harry and John ever stop bantering and start fucking, given an extra decade or two? Or will they do both at the same time? Will Hendricks apply philosophy to his own powers? Will Kincaid get powers totally not appropriate for the Hellhound (like growing flowers or something)? Explore the possibilities, anon.