Matvei Michkov in Philadelphia: What happens now?

After nearly a year's worth of hype, speculation, rumors and reports, Matvei Michkov is coming to Philadelphia. The franchise's best hope for a homegrown superstar in over a decade is indeed terminating his KHL contract and taking his talents to the NHL, a whopping two years earlier than expected.
Okay, now what?
The Michkov conversation since last June has centered around one single question: When will he get here? Now, Michkov is here -- or, at the very least, soon to be. The focus now is less on Michkov the concept and more Michkov the player.
So what does come next for Michkov and the Flyers? Let's break down every aspect of his looming arrival, and the implications for the Philadelphia ...