I don't know the exact release date of the second Peacock Plume. However, according to what I know, the Peacock Plume is a very popular novel written by Xiao Ding. He released his first Celestial Bane in 2012 and planned to release Peacock Plume in 2013. However, due to various reasons, the release date of the second part was not confirmed. If you want to know more about the Peacock Plume, I suggest you consult the relevant online novel website or consult the author, Xiao Ding.