There's a rumour circulating that Honda may be putting that new 750 motor into a retro! And allegedly it's going to be based on the original K0 styling!
If they do it authentically with a 19" front wheel then it's got my attention. Along with probably thousands of others who spent many years in their younger days on 750 Hondas!
By a strange coincidence, the 3 sons I had in my first marriage (1977, 1980, 1982) and the eldest boy from my second marriage (1988) were all born when I had SOHC 750 Fours, and the youngest from my second marriage (1991) was born when I had a DOHC 750 Four!
However, even if I did get one of those Retros, the chances of son number 6 turning up are fairly remote! And probably biologically impossible!