If you think I'm being out of line, the solution to this with the assistance of Bittrex would be like so.
1)Hey Bittrex; how many coins do you guys hold?
Bittrex XX,XXX
Okay, please update new codebase/wallet/provide new wallet address
Bittrex: Updated, heres addresss
Great, here are the new coins
Sorry, you are out of line because no one has any insight to how our systems work and I can guarantee you it is not that simple. It is 3-4 hours worth to make sure everything in the system stays intact and passes an audit. As for a manual swap, many have completed it in a much easier fashion. Just take a snapshot at a given blockheight, and premine the new coins to the addresses that have funds. It takes no manual work at all on either your part or the coin holders. This is a solved problem with multiple solutions; check out what other coins have done for swaps and follow their model.
thanks,
richie