I can only speak for myself here, but think about bikes like the yamaha ysr50. Great little bike that many grown men would still love to have. Many of the smaller bore trail bikes (xr100, ttr125...) would sell here in the States if they were offered as dual sports.
I still don't expect to see it here, but with honda beginning to bring over bikes that are less cutting edged and more focused on simple enjoyment of riding as well as good value for the money, they may surprise us all by making it available.
Just my two cents.