the übersreik 5 banter often had multiple of them talking about the same subject, dialog is farely easy to relise between 2 characters, but if they have to interact with multiple characters the amount of possible soundfiles skyrocket.
what im getting at is, if Fatshark has the ambition in terms of character depth as in Vermintide2 they would need to exponentially increase voicelines for each character they have in addition.
example: Saltspyre[A] talks to sienna [B] about her dangerous magic. Kerillian [C] throws in that her magic is a gift.
so 3 of them interact in dialog.
for simplicity sake, we say each character has 1 main subject with another and a third can throw in his/her opinion.
with 5 characters:
that makes 4 subjects per character that each can devide 3 times in different directions leading to
12 uniqe dialogs.
with 8 characters:
that makes 7 subjects with 6 people who can comment, makes 37 uniqe dialogs.
the chacracters in vermintide 2 are so great because they feel real, exploring each others past asking about their personel live or what their plans for the future are.
its not as simple to say 1 character takes
100 workhours and done,
its more akin to
50 + 20 per other character
(no clue what realistic numbers would be, its just an example)