Given a good creative team behind it, it should be a fantastic adaptation. But it would need a lot cut and trimmed down to make it fit into a TV show. Would it be 10-12 episode/year miniseries or full 22-24, f.ex? Will it be one book per year? It's a lot of work, but history shows it's absolutely reasonable.
The Lord of the Rings films for example, cut out lots and added much more. Tom Bombadil is one of the most notable instances of a big cut that benefited the movie. The elves at Helm's Deep, we don't see Radagast so much, etc. In Game of Thrones, Ros was was "the prostitute" for the first few seasons, replacing all the various prostitutes in the books. Jeyne Pool's story was given to Sansa, Jaqen H'ghar and Bron both make reappearances as fan favourites, Lady Stoneheart was entirely removed, etc.
IMO, in a similar way to how GoT follows Tyrion, Jon, Arya, Sansa, Danaerys as our main PoV characters (obviously there are others, but these are the main ones. I'm simplifying for this post), WoT would need to do something similar. The core should revolve around Rand, Matt and Perrin as the three Ta'varen with other main characters Egwene, Nynaeve and of course Moiraine and Lan. Thom, Elaine, Min, altho significant should really be kept as supporting characters. I would probably completely cut out the Ogier entirely, although I don't know how their role with Steddings and the Ways/Portals would be included. But even Jordan wrote them out at some point...while they add to the world, they aren't critical to the story and screen time could be best spent elsewhere.
I would probably cut down the number of Forsaken massively; 13 is waaaaaay too many. I think 6-8 ish would be more focused, although considering the changes over the course of books/seasons, it could maybe work with more as they die and get replaced. Ultimately you only *need* Ishmael/Moridin, the two that get gender swapped, Asmodean, Moghedien and Lanfear, maybe one of the other two ladies, Graendal or Semirhage, but no need for both. Oh and that one that marries Elayne's mother, the Queen (tho even he could be cut out). Demandred is obviously important towards the end, tho they could always "resurrect" Ishmael or make it someone else. Certainly half of them could go.
I would probably remove 1-2 of the different kingdoms too. The Aiel are obviously essential, as well as Two Rivers/West Lands, Seanchan, Sea Folk and Malkier/Northern Kingdoms (insofar as they need to exist, tho we never really go there). Oh and Tear of course for the Callandor arc. As for the others, they could be trimmed a bit, storylines combined, etc. Swathes of characters could be removed without damaging the main plot too much. Ultimately they need to keep the Dragon Reborn storyline moving while weaving in and out the political subplots, most importantly the White Tower and later, the Seanchan invasion, if it lasts enough seasons to get there. Other things they can pick and choose for flavour, (Cha) Faile, Aviendah/Wise Ones, those pacifist Way of the Leaf gypsies, Black Tower, Black Ajah, the Kin, Siuan Sanche, etc.
I know Faile has to be there but I can't stand her. I thoroughly disliked her from the first time we meet her and it never changed. Or Gawyn, I hate him even more than Faile, but less than Galad. Oh, and Elaida...she would be even more hated than Cersei Lannister! Most people hate Cadsuane, and so do I a bit. But the worst thing with Cadsuane was that she was infuriatingly almost always right. I was never an Elayne fan but in her case, I know she had to be that way because of the Throne. Also, I'm Team Aviendah
Highlights of the show would be chronologically, Moiraine vs Lanfear, Matt blowing the horn, Rand with Callandor/vs Ishmael, Nynaeve vs Moghedien and the most epic scene in the whole lot, when Rand and Nynaeve use the sa'angreal to cleanse the source....it's one of the most incredible events that only works because of the journey the books had taken us on, with these characters, until that point. I would pay cash money to see that on the big screen, let alone the small one. I couldn't stand Nynaeve at the start...she was a bully who did nothing but tug on her braid and cross her arms beneath her breasts. But she somehow became one of most incredible characters in not just the series, but in the genre. If they can make even simply a good show with good writing and cast, that scene would be more incredible than 3 Red Weddings and about the same as Hardhome. Oh, and Lann vs Demandred...that is a showdown of the Ages. That scene was almost as good as his wife's. Ummm...and the Aviendah love scene...that was so damn hot, dear Lord I have the vapours. *wafts himself*
