1. World of Warcraft Classic is set to expand upon the Cataclysm expansion's content rollout. This means that players will have the opportunity to experience the events and storylines that were introduced in the Cataclysm expansion, which significantly reshaped the game's world and introduced new zones, quests, and challenges.

2. The article mentions that the Cataclysm content in World of Warcraft Classic will be released in phases, similar to how the original Classic experience was rolled out. This phased approach allows the developers to carefully manage the release of content and ensure a smooth and engaging experience for players.

3. The article also highlights the excitement and anticipation surrounding the Cataclysm content in World of Warcraft Classic. Fans of the game are eager to revisit this pivotal moment in the game's history and experience the dramatic changes that were introduced during the Cataclysm expansion.