I think it was May for both releases.
Although an actual date hasn't been announced for
the extended version of ROTK yet, some details were
posted on the digitalbits yesterday.
The article contains some minor spoilers......
In other news today, the Lord of the Rings fan site The One Ring.net has posted a new interview with New Line's Senior Vice President of Marketing, Matt Lasorsa, about plans for the Return of the King: Extended Edition. Matt's a good guy - we've met him many times before - and this is a good (if brief) interview in that you get some solid facts about future Rings DVD plans. Definitely check it out if you're interested in the 4-disc DVD. The gist is that the 4-disc version is due "just before Christmas 2004". Look for the extended version to be over four hours long, featuring extended scenes and dialogue, as well as new scenes involving Faramir, the fate of Saurman, the Mouth of Sauron at the Black Gate and more. As far as a possible "Mega Box Set" of the extended versions of the whole Trilogy, it's at least 2 years away, and will likely feature all-new content created with Peter Jackson's participation.