Judging by the general trend I don't think this is happening anytime soon. The overall car industry is obsessed with even bigger cars.
And even in Europe it is sickening to see those half buses on our roads. And this is especially true for big cities, where parking space is very limited and usually those cars occupy park space for 1.5-2 cars.
And knowing that the fertility rate is really going down I wonder what justifies those cars.