I wonder how they plan to handle Mat's memory issues: the only thing that I can imagine that would work might be flashbacks...?Right. @Bolares you've heard Moiraine mention that the protagonists are Ta'veren, but she didn't explain what that meant. You've also heard mention of the wheel and maybe the pattern. In the books we get a much better explanation of those things. The wheel is something like sewing wheel and the pattern is the reality that is woven by it. Each person, object and creature in existence is a thread.
If you take a shirt and the threads in it, sometimes a thread can move around or even be plucked out and next to nothing will happen to the shirt. Other threads are critical and if you remove them you lose a button or a sleeve falls off. Ta'veren are those critically important threads.
For purposes of the story, the minor threads have more latitude to alter their lives and change their circumstances. The Ta'veren, through, are much more tightly woven into the pattern. Their importance actually swirls the threads of others around them and creates great alterations to the pattern, but while the destines of others get changed, the destines of the Ta'veren are pretty set in stone. It's an interesting contrast that Jordan set up.