Thanks for the kind words. I am personally excited having the 5348 now. Honestly, a big part of this is my own personal enjoyment listening to some pretty awesome audio through the 5348 and the Trinnov Altitude16 in the Lumagen Demo Theater. I have started to buy more concert videos for our Strato and have been listening to a lot more music of late, compared to before the 5348.
FYI: The "cans" you see are Laird Technologies Faraday cages placed over the same DC-to-DC switchers used in the 4XXX series. I prefer DC-DC regulators be "on-board" rather than in a hybrid module. The Laird Faraday cages can reduce radiated EMI from the DC-DC switchers by over 60 dB. While EMI is not directly correlated to the output jitter, I believe reducing EMI is part of the "lower jitter" equation, and also help lower the electrical noise floor for frequencies that affect audio content.
If we do a special FPGA load for the 5XXX we will consider making it available for the 4XXX models, for a fee. This would be a 4k centric version, which might change the status of, not only vertical-keystone, and PiP/PoP, but Darbee as well. So those who have a lot of 1080 and lower resolution content my not be interested. The current work for the pipeline enhancements needs to be completed and then we can know more about available gates in the FPGA. The changes for the proposed special load would further improve pipeline precision beyond the current work, and perhaps allow us to consider additional features. Any such special release is a long way out and may never happen. That's all I can say at the moment.