One popular 'New World of Warcraft' novel is 'Arthas: Rise of the Lich King'. It delves deep into the story of Arthas, his transformation into the Lich King. Another is 'War Crimes', which focuses on the aftermath of the war and the trials of the characters involved. There's also 'Illidan', which explores the complex character of Illidan Stormrage.
Well, 'The Shattering: Prelude to Cataclysm' is a great 'New World of Warcraft' novel. It sets the stage for the Cataclysm expansion in the game, introducing new storylines and character developments. Then there's 'Stormrage', which is centered around Malfurion Stormrage and his adventures in the Emerald Dream. And 'Jaina Proudmoore: Tides of War' is also quite popular as it tells the story of Jaina during a crucial time in the Warcraft universe.