Would be nice to finally get some insight in Gantz. At least something.
But that's only if the aliens will talk with the vampires. If they just attack them, we won't get infos (I'll put my money on that).
And the girl will fall for Katou. It's obvious isn't it. Just look at the history of women that already did.
Kurono had Lara Croft, Tae and Reika.
And Katou had Kei.
Oku would make a plottwist and let her attack him. He's too perveted to do something like that.
"For Feanor was made the mightiest in all parts of body and mind, in valour, in endurance, in beauty, in understanding, in skill, in strength and subtlety alike, of all the Children of Illuvatar, and a bright flame was in him"