According to a report at Sci Fi Wire, the WB has pulled the plug on the Dragonriders of Pern pilot just before filming was to begin. No reason was given.
Update 4/5: Ronald D. Moore, producer of the Pern series, told Sci Fi Wire that it was due to a dispute with the network on the creative direction of the series. Read More…
Seem Moore wanted a serious series true to the book…WB wanted a Xena clone. After a network-ordered rewrite by another writer that fundamentally changed the show, the network decided to cancel the pilot rather than fight about it.
Due to complicated rights, it is unlikely to be moved to another network.