The Prometheus story line

I just saw this movie today as a Father's day gift ... and starcraft just kept creeping into my mind while i watched..... The reason i am posting this, is that i hope, that in Prometheus 2, the engineers will not exlpain the reason they want to destroy the Human race, is because we became a disapointment to them. Or given an explaination that the black goo makes docile creatures into killing machines. Or that the aliens are lead by some overmind. Or that there is yet another alien race to enter the story ala Psionic weapons. Or even forbid there be ancient crystals involved. It would not kill anyone to be just a weeeee bit orignal.