I get where this is coming from: Riikola had a great camp for the Pens and everyone thinks he has now made a Pens D man expendable. Maatta is a legitimate trade candidate if Riikola turns out to be the real deal.
But Maatta for Panarin makes no sense for anyone. First off Panarin, even a 1 year rental of Panarin, is worth more than Maatta right now. Secondly, the Pens in no way shape or form would have the cap space to retain Panarin after this season and would need an additional cap dump just to make his current salary work.
You're going to see a lot of Maatta for __(Insert top 6 LW Here)__ this season.