You can be sure there will be exchanges that will add ether so that they can profit from trading fees
I am not sure they will, ether is meant to be traded on ethereum. Bitcoin exchanges will be created as decentralized ethereum applications. There might be outside exchanges who pick it up, that's what I am trying to find out from the devs....how available and how easy will it be to trade ether for bitcoin after the genesis block is created. I haven't gotten a clear answer yet.
I suppose its up to the exchanges, but they might treat it like NXT. I think NXT is only on Bter.com?
..and @hamiltino : Not making any bold statements about no short-term or immediate gains, it's just my guess, if it was a bold statement, I wouldn't have used the word 'probably'.