I would like to see some super preds breeding their own batch of xenos, then letting 'em loose on a remote country somewhere on earth, sometime in the future. These xenos have been tortured, experimented on, and locked in cages for many years and lost their "protect hive, protect queen, ensure survival of their species" mindset and have become completely feral. But keep the number of xenos low, like 5 xenos in the entire movie just to reinforce how deadlier they have become. And each xeno looks different because they are all from different hosts from throughout the galaxy.
The number of preds needs to be low too, like 1 or 2. These preds are really powerful and smart, and use alot more powerful weapons in their battle with the savage xenos.
And also there is a team of soldiers in this areas too. These guys are like special colonial marine commandos, and have a bunch of crazy weapons but they're pretty useless because the team is only in the movie to get torn apart by crazy xenos and super preds.