The UO herald has notes for the publish 55 which is live on Test Center. Note there will be some graphics missing as the client patch isn't scheduled till Monday.
http://update.uo.com/design_595.html
My own highlights from quick glance over:
Arcane Focus is being fixed so can obtain level 5 with Arcane Circles in homes again, there is a -1 penalty if using a pentagram or altar.
A whole slew of new Vet rewards for more than just 10th year. Highlight is a 'commodity box' which will allow you to fill and cash in commodity deeds at your house! No more caravans to/from the bank!
New plant seeds and including Cocoa plants, which also adds 2 new items to cooking menu (Cocoa Liquor and Cocoa Butter)
Vet reward dress with 3% phys resist.
Stumped log and mining cart that will give 10 random materials per day (including frost or valorite) and can store up to 100.
New 10th year ethereal mount: ethereal Cu
New 10th year Ankh of Sacrifice: allows player to self res at their house (1hr cool down timer)
Some of the new plants look like they can be used to make hedges for better house decorations.
Lots of other stuff, those were just my highlights that peaked my interest.