Toukiden sequel or enhanced version in the works

We've only just landed Toukiden in the west and already a Japanese trademark suggests that a follow up is in the works. And why not with the game selling some 600,000+ in the east alone? Whether "Toukiden Kyoku" is a true sequel or a combination of all the DLC content plus some new features, and hopefully new monsters, remains to be seen.

Between this and God Eater 2, the Vita has plenty of monster hunting opportunities. Furthermore, with 3DS sales of Monster Hunter 4 topping out at around 3.25 million, not much over half of the PSP's 5.5 million, perhaps the daddy of the genre will stalk a Sony's handheld in years to come?