Hi there, PSG fan here :)
It will be an interesting game. A lot of us here wanted City: more prestigious than Wolfsburg or Benfica, weaker than Barça, Bayern and Real, less boring than Atletico. We know you're not gonna be at your best with Kompany and (hopefully for us) De Bryune out, but we have one problem of our own: Verratti is out for the first leg, probably for the second too. Rabiot did a good job at Stamford Bridge (and scored, which Verratti never does!), and Pastore can play at that position too, but still, Marco is our most important player in the midfield... So I'm confident, but not too much.
And about us being "rusty" since the League is already won, I think that problem can come up more if we make it to the semis. We have only two games between now and the first leg, and we play two very good teams, both times at home in Paris (so with the City game, it will make three home games in a row): Monaco this Sunday (they rank second, so PSG will want to make a statement and celebrate properly our title win in front of the fans) and, after the international break, Nice, who is now ranking third — there is a statement to be made too. So I think we will arrive in good form on april 6th — without Verratti, but probably with Serge "Big Mouth" Aurier. Good game to all and if anyone wants to talk about the incoming game, I'd be glad to!