What we do know so far is that Ki and Succubus are leading the people up the tower and also acting as advisors for Neeba and Jil. So you got the lovers of gil and druaga leading everyone. Take that as you will.
It's also implied that Kaaya is some forgotten love child of Ki and Gil, or just a bastard child of Ki.
Gil killed his advisor at the end of the season, so we can already assume that the curse of druaga does alot more than keep him from dying due to fatal wounds, but apparantly he wasn't even aware that it was one of it's points since Ki had to tell him that.
The motherfucking 4 knights are what Pazzu was carrying up the tower, almost no doubt about that, gonzo just ups the ape shit faggotry by making them out as women.
Motherfucking gonzo set up a damn triangle for Jil to be hooked up with any of the three main female characters of the groups, since Fatina and Kaaya are obvious, he also wanted to use the rod to bring back Ahmey.