Blizzard President Mike Morhaime confirmed this week that Cataclym is scheduled for a 2010 launch, but many players are still wondering if the team plans to implement more new content before Azeroth changes forever. Zarhym addressed this topic with a vague comment on the official forums:
"We do have some additional PvE and PvP content and changes we plan to implement prior to the release of the big Cataclysm patch and subsequent retail release of that third expansion. We'll be discussing these new features in more detail in the coming weeks."
Zarhym reiterated that Icecrown Citadel is the final Wrath of the Lich King raid in terms of tiered progression, but did mention that in the coming months Blizzard will be "slowly making the content in Icecrown Citadel a little more accessible to the majority of the player base."