Those have been around for the past week or so. Do you live in Japan? If you don't, you won't be able to buy them directly. You could find someone to buy for you.
However, these are the custom MH334's which use the FitEar proprietary connector. In other words only FitEar can re-shell them for you (unless you're willing to ditch the cables & go for a more conventional re-sheller & standard UE/Westone cable connector). By that time the signature may be quite different from a 334 already.
I use a proxy buying service. I'd rather not have them molded when I am in tokyo. I'm sure it's pricey too. I guess I should just save up and get the 334 if it really is better than the 111.