http://screenrant.com/neil-blomkamp-alien-movie-artwork-prometheus/ So... Reasons for why Hicks is back: 1) He never died, and we follow that supposedly "canon" bollocks from Colonial Marines, which suggests that there was some other dude in the EEV. 2) We completely ignore Alien 3 and 4. 3) He's a clone. 4) He's a synth. 5) He's a ghost.