@T-Squared: That's definitely not Seret. =)
Seret was based on the nb01 Hood style, and was from Choru, not MUDPIE/DIRT. =)
All the options we can reasonably attribute to Seret are still available in Uru, though some of them just aren't randomised in MO:ULagain. (For example, Seret had no waterfall - this option is still in the SDL for the Hoods, but not randomised on creation =) )
This is essentially a video of a walk-around of what about a month of talking to those who were actually there revealed of the settings of Seret. RAWA himself did not remember, sadly.
http://guildofartisans.org/uruages/seret/seret-video.mp4
I've believe, however, that like Kirel (originally an nb01-style hood) Seret was to get a new layout and new colours if it were released fully. =)
EDIT: Before I forget, the framerate on that video is /terrible/, recording in some versions of Uru murders my framerate, sadly. :<