Well here's the way I see it. If Ricky Williams never dawns a Miami jersey again, Edge will. The question is when will it happen. Now the Colts are obviously going to make a run at the SB this year again and they feel they need Edge to do it. But the facts are that Edge isn't going to play in Indy next year....well I shouldn't say isn't like I'm 100% but I'd be more than willing to say 95%. It's out there that Edge doesn't like it in Indy, it's out there that he wants to play in Miami and it's out there that Miami needs a RB. All the pieces fit together.
If I'm the Colts I trade Edge. (And I'm looking at this as if I weren't a Miami fan) The Colts FO can be all but positive that they will be losing Edge next year. With their Franchise Tag going on Harrison, they just don't have the money to sign both players. So the question becomes, do you keep Edge around and make a run at the SB (going against the likes of N.E., Philly, etc.) or do you make the trade and possibly pick up some defensive help (O-Gun most likely) and maybe a draft pick here or there (because we all know how frugal Miami is with their draft picks. See dictionary definition of scarcasm)
Like I said, either way the Colts are most likely going to lose Edge. Do they want something for him, or to they take their shot at a SB. It may depend on how well the season goes for the first couple of weeks. If the Colts get hit w/a major injury (Manning, Harrison) or they just flat out flop, they may be more willing to trade Edge. We'll just have to see...