Answering my own questions here, as I found some more info on the CR website under the news section:
https://www.classicretrofit.com/blogs/news/2025-is-the-year-of-the-heat-pump-for-porsche-911s
The new system now is going away from the stock mechanical blend valves and replacing it with servos and a new panel. Hopefully that now also means bigger diameter tubing throughout the system, which was a bottleneck on the old version.
There are a few sneak pics for the RHD cars, none yet for LHD though.
Target for start of sales is summer 2025!