I'd like your thoughts on the best way to approach switching the new implementation to live production instance.

My test environment is a 'snapshot' of the production environment but obviously there will be a whole bunch of live requests that are not processing into my test snapshot whilst I test and re-implement settings etc.

I consider the changes required for re-implementation too risky to make in the production environment, even in incremental stages.

So, I'm looking for some advice on an approach for setting up the new implementation away from Production and then transferring to Production with up to date request histories etc etc.

Your thoughts would be much appreciated!

Many thanks, Angela