If the thread had been locked, you couldn't have posted that question.
No, Dernhelm said there is some debate as to whether Jadis really died at the end of LWW. I think she did. In the movie Aslan ate her face. So, yah, dead. The Green Kirtle Lady is some new witch, not the same person.
Just an aside on characters representing other figures: even if we agree that there are correlations between Christian figures and Narnian characters doesn't mean we need a one-to-one correlation. It's completely possible that one character represents more than one archetype or figure in Christianity; it's also possible for more than one character to represent a Christian figure. So if I were going to write a Christian allegory or rewrite Christianity in a, um, fantasy world, I might have four disciple characters representing/standing in for the twelve disciples, or I might have twelve characters playing the role of Satan. I'm not saying that's what Lewis did, but he certainly may have.
Assuming that the Lady of the Green Kirtle and Tash are not the same as Jadis (or each other), any other ideas on where they came from? This is something I've puzzled over a bit . . . . (Forgive me if this has been discussed earlier in the thread; I'm afraid I haven't read all of it. )
He's pretending he tried to contact dead CS Lewis through oujea board.