If I do put this to paper there are two scenarios, feel free to make comments.
A. Hero with his party fight his war to Ostrigar (eventually), and face Seith, If Seith wins good, if not, he does get Jennah with child, and wins anyway.
B. Hero never made it past the first night, Cass the Desire Demon, pulls him into her universe and gets her to love him and takes him to Ostrigar. If the hero returns the love, she softens, and eventually supports him, if not, she helps Seith turn him, of course the verser is given one last second dramatic attempt to do something in the latter case.
Kyler was easy, I know him well enough that the weird one would intrigue him, it's mainly a GM decision on when/if to go from scenario A to B
