I suspect, also, that the Japanese plane has the highest likelihood to arrive in the US. Mitsibushi reps showed up at SKW and gave their sales pitch already. I'm told the guys really didn't speak english too well, but kept saying "see? better!!"
I notice that they didn't publish an empty weight. I didn't see anything so far that's any different than their competition. Whatever designers say on weight and fuel burn, I've yet to see a finished product that didn't burn more and weigh more than the original estimates.
So, like any new market entrant, a comparable product will have to compete on price. And that will sell in the US.