Sequel has been announced, what should the sequel focus on?

Well, it appears that A Quiet Place 2 is in the works already, not really a surprise as the first ones have been an enormous success.

What do you guys think the film should explain next. I am sure they will still focus on family and what would you do to save and protect your family, but apart from that what answers would you like to get?

Personally, I would love if they explained more about the aliens. For what we say in the first movie, they were not hunting to eat, they just killed any living thing that made a noise, but they were not eating or at least it wasn't shown. (I assume as they were no dogs, or other wild animals on the film only fish which was explained why, as the waterfall noise made the life there possible and fish do not make much noise haha).

If that is right, then why do they kill everyone? How do they feed? What's their purpose, they do not seem to be really smart, are they part of a more significant invasion? Perhaps, they are just the dog that scares the birds so the real hunter can get eyesight, that would be interesting.

What do you guys think? What should the film go on the second instalment?