Happy with this unexpected, but fortunate move. Could be career-defining for Patrik.
I'd keep expectations on hold for most ridiculous numbers, but it is clear that Patrik should be at least utilized as PP force multiplier: it is hardly secret to anyone that when that cannon appear anywhere near his traditional office, an opponents tend to cheat toward him, sometimes even with 2 or 3 players, but always at least with one dedicated for the job. Only his presence there make more room for others regardless of do he get a puck or make a shot or not.
Hoping reasonably sheltered role and minutes for Patrik, and possibility to use his main weapon a lot. At least first as designated PP specialist, possibly doubling in both PP1 and PP2. Kind of embracing that age old "one-trick pony" metaphora, knowing it is not entirely true, but for that One trick certainly effective way to get started. I would give Patrik a lot of responsibility in re-organizing Habs powerplay, from shooting drills to actual tactical schemes...
And hey, everyone should just end idiotic experiments, desires, and fantasies concerning vision of "Patrik the center", it's waste of resources. Just pass the puck!
Patrik is an artist. Of rare specimen. Feed that inspiration.
Everything will go fine.