Oh, btw,
I have heard rumors that a third OAV is 'in the works', but then 
I have also heard rumors that after the poor performance of 
Shin Tenchi that there would be no more Tenchi Muyo.
Sadly, I am inclined to believe the latter.
It is doubtful that even if money were accumulated to be 
able to do the series now that it would be what was intended at 
the end of the 2nd OAVs. 
However...
From an article in the Shin Tenchi Newtype artbook, (in which the 
Goddess Washuu image I have is featured), there are novels which cover
what would have been covered in the 3rd OAV. Based on the pictures, 
they would roughly be concerned with Ryoko's goddess nature, Washuu's goddess 
nature, and Washuu's baby.
Now.
I have sent off for the No-N Te-N (non ten) doujinshi books that are these novels.
Now I just have to get someone to read them for me. ;_;
(well, I got the one with Tokimi on the cover, the one with goddess washuu on the cover, 
and the one with Washuu and the woman who looks like a female Kagato on the cover).
Once I have begged, bribed or bartered with someone to give me a synopsis of the 
stories contained therein, I will post it on my webpage.
Sure I would rather have anime for it, but if this is all I can get... well, then 
I will make do.
Ryochan