Haruka is going, sans Pokéballs. What she's doing depends on what the options are - she's not averse to killing as an absolute last resort, but her top priority is always God Stuff so if Sanctuary has any ruins/temples/etc those will be of interest. She has a couple small fliers so she'll probably bring one of those.

She will also be on a Rotomcycle. WHO WANTS TO FORM A BIKER GANG.