Is this still open?

If so, may go for some kind of Highlander-esque immortal but going to use the Theatrix version of them for sanity sake - if that is okay?

http://www.amadan.org/HDR/HDR-world.html
http://www.amadan.org/Theatrix/Theatrix-Highlander.html

Was thinking of maybe pinching Leonides from 300 and making him one.