User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-16918345-20130908074814/@comment-7584137-20130908094250

I guess this one won´t take as long as 3U because it´s a "main" game, a major entry in the series. And Capcom apparently was waiting for the announcement of the WiiU before announcing 3U, that´s why it took so much time. And considering how well 3U did in the west, I´d say it could less than half a year or a few months. It all depends on Capcom, really.