S660 is coming to Europe, but a longer and wider version with an 800cc engine making 100 HP. Should go on sale in a year or two. Demand in Japan will fall around that time, so offering it in Europe makes sense. Rumored to be built in Swindon alongside the S1000 which might end up being Honda's 4C competitor.
No S660 for the US, but Europe will likely get a slightly wider and longer S800 in a couple of years. S800 is also rumored to be S660 Type-R, but Honda is using more displacement instead of more boost for reliability and it should be able to have around 100 HP.