No official word yet on the new features of Hudson, although it will most likely address some of MetaFrame XP 1.0's current weak spots. (Like the ability to publish applications to OUs in AD environments, tighter AD security integration, and better distributed administration.)
Originally slated for a release "90 days after Microsoft releases Windows Server 2003," Hudson will help Citrix keep the pressure on Microsoft, and it should help bolster Citrix's position as Microsoft continues to evolve and enhance their Terminal Server functionality. (a la project "Bear Paw")
There's also no word yet on what the official name of the product will be called. Perhaps MetaFrame XP 2.0, or MetaFrame 2003?