I doubt you'll ever see a 5 watt Archon for the reasons Les mentions above. Everything I've read about the Archon series says it would work best with a push-pull power stage. Most 5 watters are SE Class A 1 power tube setups.
Yes, Suhr took a separate path with the Corso and instead of the usual single EL84, chose a two tube, push pull setup. An singled ended class A design certainly has it's qualities and they can be very appealing. But big powerful sound, and the ability to control a high gain pre stage are probably not amongst them. Their strengths are the smooth even order distortion, vibey, loose feeling, easier feedback at lower levels (yikes with a high gain preamp stage, IMHO!). I'm oversimplifying for the purpose of not writing a book. LOL
(And Les, I was in line, cash in hand to buy a Corso after Pete Thorns demo, but months later still no amp, and I bought a Mesa TA15 instead. Seeing you comment favorably about it here more than once lately has gotten me interested again).