Survivor All-Stars 2?

Rumor has it that the next installemnt of Survivor after the 15th season in China will be another All-Stars edition. Supposedly none of the winners will be asked back and they second All-Stars season will comtain only contestants from seasons 9-15. I'm not sure yet how reliable this information is but its defintiely something to keep in mind! I'll update as soon as I hear more.