After seemingly wiping out the Engineers, David begins his own experiments in manufacturing life – experiments that lead eventually to him creating the classic Alien Xenomorph.
Warning: The following contains spoilers for Alien: Covenant.
All this theorizing could of course be moot, considering the alarmingly low box office returns for Alien: Covenant and the uncertainty surrounding the future of the franchise.
Ridley Scott may have big, ambitious, cool plans for more Alien movies, but he may never get a chance to realize those plans.