Apologies for reviving such a long dead thread, but I saw no reason to start another Lady Delcia topic.
I see that nearly four years have passed and the Lady Delcia Caan Romance is still but a hope, a dream, for many of the BG2 fans. I know that there was such a desire to see its completion that this long delay can be nothing but sheer pain and torture, a torture to be endured for seemingly forever. That said, while re-reading threads from ages past, when I came across this one, an idea hit me for this... of course, I think it could only involve an evil PC, or at best, chaotic neutral... but an idea nonetheless.
And no, it isn't Lady Delcia Visits the Underdark. I must admit, however, that that particular thought would be an enticing prospect.