Viz has updated their March release schedule to include second editions of the first 7 of both Dragonball and Dragonball Z mangas. One would assume that all of the Dragonball releases will be uncensored (as newer first-edition releases have been) and if you only have an edited copy of 1-3 this might be a good time to get the real thing.
Ain't It Cool News has also posted announcements for both DB #11 and DBZ #11 and second editions of Vols #8 through #10 of each, as well. They indicate that a release will be roughly around Shonen Jump July 2003, which will be in June. Not a lot of new information there, but at least there's an announcement of some kind that we can speculate a release date around.
(For the record DB #11 is the middle part of the 22nd Budokai leading up to the finale in the next volume. DBZ #11 is more of the Frieza vs. Goku battle.)