1. Name change: Shangjing has been renamed to Shanxun, probably to increase brand awareness and appeal.
2. Variety of dishes: Mountain Xun Buffet offers a very diverse range of dishes from various countries, including Italian cuisine.
Overall, Shangai and Shan Xun are two names of the same restaurant at different times, and now the restaurant has been renamed to Shan Xun, offering dishes from more countries.