They claim that ICC will be the final raid, and Arthas the final boss of WotLK. As far as patches containing non-raid content I am unsure. They have said that there will be multiple different pre-launch events for Cataclysm, some of which have already surfaced with the quakes.

They have said many, many times here that there will not be a 3.4. Presumably, if they want to make bug fixes or class balance changes or something before Cataclysm, they will call it 3.3.something, and it will have no new content, just tweaks.

Also, I think one reason why Bliz is being cagey about a 3.4 is that its existence, or not, would sort of tell us when Cataclysm is coming.

If there is no 3.4, then Bliz pretty much has to release Cataclysm in the first half of 2010. But if Bliz comes right out and says that they're planning a 3.4, then we can probably expect to wait until the fall for Cataclysm.

So don't expect real confirmation/denial on 3.4 until the Cataclysm release date is announced.

There has been no news of Cataclysm since Blizzcon, and most predictions say it won't come until June at the earliest. You know Blizzard always has delays. Do you think Icecrown will keep us satisfied until late summer? I am doubtful.