ROR has the Sabres' dysfunctional stink all over him. He's a slow skater in a fast league that is getting faster and he has 5 years left on a fat contract. And if our speculation about him asking for a trade is right, he will have forced his way off of 2 teams.
I could certainly be wrong, but I think you're looking at a #1 pick in the teens plus a good prospect and/or a below-all-star-level roster player and that's it.