From Darren Dreger of TSN, it appears that the Rangers will sign Shanahan for one more run this year on the New York Rangers.
I'll update with more information as I have it, but I don't like this move for a few reasons. This means that Prucha will almost certainly be shipped out of town with his salary number with rock bottom value. Also, Shanny will probably be playing in the top 6 if he is signed, somewhere he does not belong considering his age and speed.
Put him on the 4th line with power play and penalty kill time and I'm all for this signing, but using him in any other way is a mistake if you ask this Ranger fan.