I already have that information and the patch files from a site where was an "official" post made by Holy but, that patch contains the character support only for the client side. He also mentioned that in his post, that the character is only added is the client side and the only thing that remains to be done is to code the new character into the GameServer and then it will also be on the server side.
But, I have seen some screenshots with the testing of this new character and also a video where I saw the new character working good. So, to be able to test it 100%, he must have coded it into the GameServer as well on some server files, otherwise I don't know how he could make a complete test. Over time he dropped the project because the server for which was the new character had problems and it needed to close down. After that, he released the client side character support files. I have searched tons of sites and forums in all possible languages, but I've never found anything regarding the server side.
And yes, the character was created for Season 3 Episode 1.