i'd like to see the David become more inquisitive/mischievous. it would suit his character now that he no longer has a parental figure. would love a scene like the one from Spaihts script, torturing Shaw with a facehugger like creature.
id like to see humans play a big role in the engineers plan and more than then just simply wanting to destroy us. make the final scene count. the engineers need to use humans to create their ultimate creation, the xeno. then in the third film explain the ship on LV427 and where the eggs have come from.