Brandon Sanderson finished The Wheel of Time when Robert Jordan passed away and he did a phenomenal job. It took a few books to do, because of how complex of a place the long series was at the time that Jordan died, but it was absolutely done in the spirit and hand of Jordan. If he had been required to do it in a single book it would have been so very bad, he probably would be one of the most hated writers in history if he had short changed that series.
Nothing goes together quite as well as “WB” and “Squandered Goodwill”