Rich Johnston reports this morning that manga creator Akira Toriyama is going to write some new chapters of Dragon Ball (also known as Dragon Ball Z in the United States). Dragon Ball originally ran from 1984 to 1995 in Japan, and Viz Media published it in the U.S.
Johnston states the obvious: "Something that will make this event even more spectacular is a simultaneous fully translated worldwide launch of the new book."
The Viz folks were tweeting last week about a big announcement to come this week, and they have already done a simultaneous release with Rumiko Takahashi's Rin-ne, so this indeed may be their big news. Stay tuned!