Eh, I'm not really convinced. He's 5'7 and this season only has 12 goals and 35 points this season. For what it would cost to acquire him I would rather go out and get Brayden Schenn who's 4 years younger and 6 inches taller.
The Rangers are willing to take veteran pieces to compete now. It doesn't make much sense for the Flyers to trade Schenn for Vrbata or a package including Higgins.