Somebody stop me!

I think very obviously...excluding the twists that will certainly more or less take us by surprise...I can humbly say the following: Blue guys must be the saucer guys and they are malevolent. They have superior technology, can turn nature elements like the tornado in the trailer to weapons. They have created the bio-mechanoid life forms, the xenos, to eradicate visited planets and other threats. The bio-mechanoid attaches to the host and inpregnates him. Thus the offspring is a dna mix of the xeno and the host, giving it the advantage to eradicate both the host and the others like him.Stronger by natural selection. Hypothesis: The cobra bites and ripps through the suit, and moves to the face internally under the suit. Attacks the face and then you know... The silver liquid has melted from the top of the "eggs" and somehow gives birth to the cobra creatures... The entire planet is a trap. After the tornado hit the mountain, it leaves an abvious shape of a human skull. A quite threatening one I suppose. So blue guys do that. So the silver liquid that started as solid rocks on top of the "eggs" must have contained a form of the blue guys DNA.You do the math. According to this theory, the sjs is another race probably different from the blue guy....not too much though. I suspect they were the last civilization that suffered the same fate we are about to suffer in Prometheus. They tried to stand up to the malevolent Gods and tried to help all other races on other visited planets by the Gods to avoid the same fate. They left the pictograms in order for visitors to go find them and get informed about the real plans of the Gods. But the Gods must have eradicated them somehow, and used the pictograms as a real trap.As soon as the visitors would have visited the cave the blue guys would know it was time to take over their home planets. Their DNA would be appropriate for impregnation and birth-giving to new living blue guys. Now regarding the sjs again. These guys, that seem to carry far more superior technology than us, at the presumed year of Prometheus, must had found out the malevolent plans of the so called Gods and tried to make a last stand. They would use their bio-mechanoid technology to turn it against them, thus making them the real Prometheus. To really use it, they would have to sacrifece one member, to become the new life form to fight the Gods. But obviously the new creature had now the mind of the Gods and eradicated them. Guess: The blue guy is the turned sj-xeno from the 1979 film. So despite the good intentions of the sjs, after they were eradicated, the Gods are now after the humans. The blue guy (sj-xeno creature), reappears on set and tries to release the direlict to its course to Earth. Of course I can think of some other stupid things too...like Mr. Weyland had visited the planet before, has set the trap, thus the human head, got hold of the alien dna, produced his alter-ego as the blue guy, and set the derelict to its course to Earth so by impregnating all humans on Earth would finally grant him his dream....a new life for all Earthlings...remember the viral:" And if you endulge me...I would like to change the world..." Now the script writer could also be holding other hidden cards...like a third alien race that would be the real God after all... Shoot me now! I have no more medication for me!