I don't know KQ8 moved towards Babylonian/Mesopotamian mythological inspirtation (Dimension of Death, Sun Mask ('Mask of Eternity'), Bull-headed underworld god, etc)...
Who knows what Roberta would have done if she had been given a chance at another game?
Their actually already a couple of allusions to 'Asian' themed fairy tales in the games already! The nightengales for example, the Mechanical Nightingale especially is based on The Nightengale (a story by Hans Christian Anderson). The caged nightengale is more of an allusion to the The Nightengale a story collected by Andrew Lang in one of his Fairy Books.
Albeit they have each been reinterpreted into middle-eastern, and westernized lands...
Actually in the Barren Region in KQ8, there is alot of Tibeten/Nepal/Himalyan (East Asian), as well as Siberian/Northern China (and border of East Russian/North-East Asian) influence surrounding the Hillmen. Actually some of the music in the Barren Regions associated with the Hillmen has an Eastern Asian flare to it. The gongs near the Stone of Order as well.
There is actually even an optional 'great wall' in one section of the Barren Region, guarded by a lone Hillmen that can be explored (but serves little purpose except to find an extra potion or two).
The Weirdlings themselves live in Mongolian-style yurts and are shown to have Mongolian style shamanism. Also as I recall the music style played near their village is Eastern Asian in origin. Some aspects such as their clothing resembles the clothing worn by the Sherpa people of Nepal.