How could Prometheus 2 expand on its predecessor?

Ridley ScottsPrometheuswas a film of opposites.

The explorers arrive to find the moon eerily empty, its giant inhabitants apparently killed by their own technology.

Meanwhile, theres the Engineers home planet to consider.

Will this story connect to the plot of thePrometheus 2movie and its reported multiple Davids?

Hollywood sources have said that Prometheus 2 is going for a horror tone more akin toAlien.