User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-6974847-20140710161114/@comment-4009941-20140710162448

Its not in the future, MH4U is in same timeline as Frontier updates along with MH4 so no "Far Future" just like maybe a year or some years apart from MH3U thats how all MH games are.

As for you just relizing this 4th gen Old Desert is same Old Desert in Old World from MH1, The tower is same Tower in MH2 which is in the Great Forest from Frontier, Scrade Castle is as allways between the Forest and Hills Mountains and Old Swamp. Heavenly mountains is just south of Frontiers Great Forest on a island called Shiki which has relations to the Agrosy Captain in 3rd gen. And to top it all off that means both 2nd/Frontier Gen Raths and 3rd Gen Raths really do run into each other and meet all the time at the tower where all species of Raths gather. And because the Old Desert is just south of the Old Jungle our Nerscylla Subspecies(Spider) can get his Khezu skin just by entering caves in the Old Desert or maybe just going through them to the Old Jungle caves and kill a Khezu making me wonder if 4th gen Old Desert may be closer to the jungle than the part we explore in 1st gen.

http://monsterhunter.wikia.com/wiki/World_of_Monster_Hunter