Marty isn't going anywhere.
1) He's not stupid. He knows Yzerman wasn't the reason he didn't make the roster initially. And regardless, he got his gold medal anyway.
2) Marty wants to contend for a Cup. If he really did want out, he would also ask to be sent to (a) certain team(s). Why the Rangers? They aren't in contention more than we are. We are sitting fairly comfortably in a playoff spot with a 50 goal scorer returning to the lineup soon. The Rangers have been relatively healthy all year and are still sitting behind us. The only tie I see him having to the Rangers is Brad Richards, and I only think Richards will be there until his CBO this summer.
3) Marty loves the Bolts and would never screw us like that. He would pull a king's ransom from a contender. At least one 1st rounder and maybe even a top-tier prospect, not a pushing 30 grinder entering free agency. And then we have to throw in a pick on top of that?
From the little bit I've heard about it, Steve Ott makes sense. They are within a couple of years in age and both entering FA this summer. Callahan could have 3 years on his contract at 3 mil a year and Marty could be a FA this summer, still isn't a fair trade and the Bolts wouldn't do it.