I honestly don't see someone picking it up. Is it worth the cost? Look at how much 3 seasons of this cost. I don't think season 3 costs have been released. But the production costs for the first two was something like $260 million. Season three had to be at least $130 million. Not to mention if someone else picks it up, do they start where this left off or at the beginning? How many seasons would be needed to finish this? Supposedly the rights have gone to /WOT Production Limited, and they do not have a very good history with things.

It was RJ, Brandon might have put his own spin on it but it was RJ's idea. It also couldn't take place until Mat was ready. Which would've rushed his story. She couldn't show up too quickly or would've ruined much of why Rand needed Casudane. Rand would have immediately gone back to Moiraine and pretty much made Cas pointless.

Since certain things need to happen like last battle, DO prison being opened, people forget DO exists etc. But nothing saying the same thing has to cause it, As @bringbackthomsmoustachestates it doesn't have to be identical events. Maybe the Seanchan cull the ability by capturing too many women who channel, imean they capture the women and men who will channel regardless. If all they leave are the people who need to be taught, then would stand to reason in time channeling would be rare. Or maybe it's a sickness etc. So many men are suddenly about becuase before no one was crazy enough to go about testing to find men who had the ability to channel. As described in the books Taim would basically go town to town and gather up anyone who even showed an interest in his offer.