Definitely.
It would've been awesome if it had spent some time focussing on the few odd survivors that managed to escape the final massacre, only to gradually be whittled down one by one as time went by. Stuff like Newt going it alone to try and survive rather than sticking with the others, and watching and listening from the sidelines as they're picked off one at a time. Stuff like that. If nothing else it would've add some background to her traumatised state in the film.