User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-6050823-20140902204758/@comment-6050823-20140904215442

To be fair though its completely unknown where the areas and villages in the 4th Gen.(Excluding the Heavenly Mountains and Shinato Village which are in the Siki Country)are so its possible a few of them are indeed in the Old World. I can picture some of the 4th Gen. areas in the Old World, not all of them.