Hmmm, well to be honest I didn't think Amnesia was all that great a game. To be honest I thought the Portal 2 addition was more interesting and clever than the original game.
My basic opinion is that horror is one of the hardest generes to write for. Amnesia is one of those cases where what made it scary was arbitrary limits it put on the player character, so I wound up feeling just as detached from the game and any paticular feeling of dread the same way that playing a "horror" game as a genetically augemented commando does it in the other direction. Basically, it had atmosphere in spades, but in the end it was sort of like "King's Quest" or other old Sierra Game where you do the wrong thing or fail a puzzle and some cartoon monster kills you, except with a more serious art palette. When playing it as far as I got I felt more like "dang that was annoying, almost got it that time" more than anything.
While hardly perfect, I think something like "Fatal Frame" represents a sort of "sweet spot" for horror gaming. It managed to generate a really immersive atmosphere, and the whole combat via "psychic camera" while a sort of goofy idea when you think about it, along with the choice of protaganists, managed to create a nice compromise in terms of the monsters (ghosts in this case) being scary, especially seeing as how they became even freakier when you aimed at them and could see the details, without making things seem arbitrary, and also explaining why your character might actually be doing something heroic (and thus being the subject of the game) as opposed to just being another victim.
Amnesia DID have it's back story and explained things eventualy, but really to me it was like someone tried to do a classic sierra game from a first person perspective, and they didn't really carry it off well.
That said, they do have potential, I'm interested in seeing what their new property is.
As far as the picture of China goes that could mean a lot of things. China is a common source for cursed objects and such to have come from in horror. Given the enviroment in China nowadays I'm not quite sure them setting a game there would go over well with either the Chinese authorities or people outside the country, so if I had to make an educated guess we're probably going to find China fits into the lore or objects crucial to the plot, but the game probably isn't set there.... unless the game is going very retro again.