BG Wiki has been updated with information pertaining to the September 2012 version update.

The new items added can be reviewed here:
https://www.bg-wiki.com/bg/September...Update_Changes

A full category has been added for Meeble Burrows, complete with information about all associated expeditions, notorious monsters, and rewards:
https://www.bg-wiki.com/bg/Category:Meeble_Burrows

See the following page for for a list of all rewards known or assumed to be from Meeble Burrows and for information regarding the known locations.
https://www.bg-wiki.com/bg/Meeble_Burrows/Rewards

A page has been added for Super Kupowers, updated with the current list of available powers.
https://www.bg-wiki.com/bg/Super_Kupowers

That's about all for this update, but I can assure you that there's a lot there to dig through (pun intended) for Meeble Burrows.