Of course, there are many possible locations for the final leg. Hong Kong would be cool. Beijing would be cooler. South Korea is not likely, but might be possible. Japan is extremely unlikely considering the fact it was visited last season. A leg in Canada would be AWESOME, especially if it was Vancouver. That way, if teams DO go to Seattle for the final leg, they can take the train to get there.
My prediction for leg 11: probably Beijing, maybe Hong Kong or Vancouver.