Capcom has revealed that Monster Hunter 4G is getting a Western release in early 2015 as Monster Hunter 4 Ultimate. Monster Hunter 4G an updated version of Monster Hunter 4 will see release this fall in Japan (save data compatible).
In the announcement video below producer Ryozo Tsujimoto explains they wanted to evolve the series in order to appeal to old fans and also attract new ones.
Monster Hunter 4 has sold well over 3 million copies in Japan (according to Media Create).