Droping cryptsy is like no good idea. Beside the points of remy, I think cryptsy is a dino, which made very much for the crypto scene. Me personally still like trading there, because I like the gui more than btx. But that is of course personal impressions.
But delisting from an exchange could have unseen consequenses.
No not actively ask to be removed from cryptsy. Just go on with the hardfork without them having updated.
Announce that on a specific date a few days away, there will be a hard fork at a specific block.
Anyone not upgraded by then will no longer be able to function
So if cryptsy is not ready by then, it should just remove deposits/withdrawals until they get their act together.
The way it is now, and
unless I am mistaken in believing that cryptsy is the only reason for the delay, it looks as though one exchange which is not even a popular one for this specific coin is holding everything back and this definitely does not look good for NAV.