Esta questão me incomodou bastante e acho que finalmente encontrei as citações relevantes que podem responder ao limite possível. Ênfase minha.
TOR Questions of the Week, February 2005-July 2005
Week 15 Question: When a channeler is forcibly turned to the Dark, is his/her former personality lost to eternity? Are they in a permanent state of mindless Compulsion? Furthermore, can a channeler forcibly turned to the Dark return to the Light unaided?
Robert Jordan Answers: They are not in a mindless state of Compulsion. Their former personality is twisted, the darker elements that everyone has to some degree elevated while what might be called the good elements are largely suppressed. I don't mean things like courage, which is useful even to villains, but they are unlikely to be very charitable, for example, and forget any altruistic impulses. Call it being turned into a mirror image of yourself in many ways. It is very unlikely that a channeler forcibly turned to the Shadow could find a way back to the Light unaided. For one reason, by virtue of the twisting he or she had undergone, it is very unlikely that he or she would have any desire to do so.
Towers of Midnight book tour 16 November 2010 WH Smith, Paris, France - Ayyad Azryelle reporting
Q: Can people who were forced to become Darkfriends through a 13-13 circle be saved?
Brandon: He said he couldn't give an answer, but that the characters from the books would say yes.
Tanto Jordan quanto Sanderson parecem sugerir que os Channelers, uma vez transformados, podem ser "salvos". A resposta de Jordan parece sugerir que, com alguma ajuda de outros, eles podem ser revertidos para a luz. Enquanto Sanderson deu sua resposta usual para a roda dos livros de tempo.
Minha conclusão pessoal para isso é que com alguma ajuda das pessoas que compartilharam uma conexão com os Canalizadores "virados", eles podem ser salvos / revividos. No entanto, eles nunca serão os mesmos. Eu acho que eles vão ficar no mesmo estado que o de Logain, ou seja, mais frio, duro e distante, mas essencialmente para o bem.