I dissagree in regards to concussion. Small players, especially D take a pounding, and since lane's head is at shoulder level with many players the possibility of getting crunched (like Bedard) in open ice is a major reason I'd like to trade him for a "zegras" type forward..He'll be fine. He's not some weakling who needs to be put in bubble wrap in order to play in the NHL.
Guys bigger than him have had concussion issues or broken bones. It's not because he's smaller he will be more or less likely to get injured the way every other player in hockey could get injured no matter the size.
Some positions just aren't conduscive to small players, so unless Lane can play forward, I don't think having him as a PP specialist is of good use for a contract spot.
Same issue in football for QBs.. you have to be tall enough to see past the Oline, otherwise youll get mauled.
Only position that can use short players tends to be RBs. Yes theres Russel Wilson, frank tarkenton, doug Flutie, but cmon ...