Even if Yeo didn't confirm that York will indeed play on the PP, you gotta believe that he will be on one of the two units. Philadelphia just can't buy a goal while playing at 5 vs 4 so putting him in this situation sure can't make things worse. He has the abilities to be a good powerplay provider so it's up to him to take advantage of this opportunity.
1. Here's how the Flyers will look like against the Panthers. York will play on the third defensive pairing with Keith Yandle. Also, Atkinson wasn't at practice on Wednesday, but it's very likely that he was on "maintenance". He'll probably be in the lineup tomorrow.