I found more non-alcoholic drinks for your hubby. In Torshavn only, under GIN:
SEEDLIP SPICE 94, Alcohol free, England 4cl $7
In both Torshavn and Pap’s Explorer’s Bar, under MOCKTAILS (alcohol free):
ABSTINENCE ON THE BEACH, orange juice, cranberry juice, peach nectar, grenadine
COCONUT LAVENDER LEMONADE, lemon juice, sugar, coconut water, lavender syrup
MINT JULEP, fresh mint, sugar, lemon juice, Sprite, ginger ale
I haven’t seen alcohol-free wines on any bar menu, so you must have to ask for them.
My husband likes the Carlsberg (Danish, I think) non-alcoholic beer, available in every bar.
Enjoy your cruise!