https://screenrant.com/house-of-the-dragon-aegons-dream-winds-of-winter-game-of-thrones-op-ed/

House of the Dragon (https://screenrant.com/db/tv-show/house-of-the-dragon/) made a big addition to Game of Thrones lore with Aegon the Conqueror's dream, and GRRM should include it in The Winds of Winter.