He's performed well this season, but he may not want stick around forever with Philadelphia constantly losing games. Even more considering the different teams that are keen on making an offer for the number 70.
As TFP reported, the St. Louis Blues are interested in the player and are likely to make an offer if the talks between Philly and Ristolainen don't come through. Furthermore, Doug Armstrong, Blues GM, was spotted yesterday at the Wells Fargo Center for the game against the Oilers.