As of about a month ago, they told me that they will have a new one available very soon. Krazy Horse also do one optimised for Stage 2. What you will miss out on is the tuning necessary to get the best out of your cam upgrade.
That is the response I got from G56 over a month ago.
Since I don't live anywhere remotely close to either location and I have had super bad experiences having work done across the pond I certainly would not ship my ecu to them to unlock it. I might purchase one from either place and pray it arrives in my lifetime.
