Actualy, before Disney, China had only gotten the original trilogy released in some places around 2014. The impression wasn't very positive and you will find weird criticisms they made to the films, like the actors not being pretty enough. You mention the Prequel trilogy not giving a good first impression to the franchise, but i wish they would have gotten those films back when they were released. Why? Because they're far closer to the taste of chinese audiences. If you see which films have become blockbusters in China, it shows that they apreciate CGI far more than other types of special effects. They enjoy over the top spectacle, they don't have the nostalgic love for pratical effects that the ocidental audience has. Taking all of this into account, i'm actualy surprised the Hobbit trilogy wasn't even bigger there. Right now, the only way i can really see Star Wars successfuly blowing up in China is if they go back to the over the top duels of the prequels (or of The Old Republic's cinematic trailers), but that's unlikely right now. If James Cameron ever releases Avatar 2, i'm sure that film will have a major edge over the SW franchise in China.