What would be awesome is that not only is this the planet covenant intended to colonize and the engineer homeworld, but when the whole thing backfires, i WANT it as a confirmed xeno prime homeworld. it would make logical sense, it being the homeworld and subsequent "birthplace" of the true xenomorph form, in place of the creators of the black goo.
Think Frankenstein's monster, except instead of a 6ft tall zombie, it's a genetically mutated killing machine.