"IF" you want more info about future episodes you could check out the "survivorfever" website. You can use .net or.com since they are both the same. On the main page, you can click on the "survivor 15 china" link and it will take you there. In order to find spoilers, go to the right side of the screen and click on the spoilers link.
Sometimes though, these spoilers can be known as foilers where they (survivor producers) leak phony information.