Many people would be happy with the EWA cables. The 25s are great, the only difference as you go up the line is a lower gauge and the 80s have a slightly darker sound.
Alan, Colin’s business partner, basically runs the company. Colin has had many health problems. Alan himself has had mental health challenges over the past few years and continues to work on fulfilling orders. Beyond that, I would not expect any new designs from them in the future. If the 80 power cable becomes available that would be a nice surprise, but it’s been listed for pre-order on the site for over a year.
The newer design that Colin created for the SC was cost prohibitive- new tooling would have been required. They did incorporate some of this tech into the current designs though for the SC across the range.