Every once in awhile Turbine (DDO) will do some major upgrade to the look and feel of an area and might I say do a very good job at it. I propose it is time the Portable Hole get a major overall to have a more look and feel of a casters retreat.

Add In:
chemsitry labs
beakers
big library (with the ability to read some books with lore when clicked on occasionally)
maybe a specialized vendor with cosmetic caster garb, hats, etc...
There are other nice additions I am sure that could be done (ideas anyone)

Keep:
wizard & sorcerer trainers
potion vendors
scroll vendors
wand vendors
mailbox

tavern (but make it less obtrusive to the environment, more suttle)