Can legendary dwellers line up out of vault if I'm at population cap?

I'm at 200 dwellers population, and running well.

I had just one lunchbox since, but I was wondering if I can still find legendary dwellers inside or they are excluded since I'm at max population?

Has anyone experienced this?

Solution 1:

Yes, they can.

If you get a legendary dweller card, they'll come and line up outside, you just won't be able to let them in.

In order to let them in, remove a dead dweller, lowering your population to 199. As far as I'm aware, they'll wait indefinitely.

Solution 2:

Ok, I have some proof of that as well. The dweller isn't legendary, but this proves that they can still be in lunchboxes.