At least getting the full daughter list will rule out the possibility of Bonney being one of them, so it'll have this impact besides just serving as trivia.
@DarkWitch:
I highly doubt that Tamago is Smoothie's father, since it was stated that Big Mom kidnaps her husbands and then forces them to have kids with her before kicking them out. However what if Tamago is Smoothie's husband?
I like to think if one of the fathers agreed to become her subordinate and serving her as just any crew member under her authority, they would be allowed to stay. I mean, Pudding told us the Charlotte Family was made of Linlin, her kids, her husbands and her grandchildren.
Him being Smoothie's husband would work as well, I think. Anyways, I think we definitely need to see more "in-law" family members.