Poor Brandon, trying to pull a fast one on us and throw us off the scent by claiming that Moiraine might not be still alive. Moiraine IS coming back. That has never been in question in most WoT fans' minds. We're not buying it, sorry. . .
Hell, I'll believe that Mat is gay and that Mazrim Taim is deep down a very decent guy before I believe that Moiraine's life ended in The Fires of Heaven.
There is some interesting stuff in this interview, but beware of spoilers. You can read the full Q&A here.