When TWICE babes become grandmothers and they are not disbanded

Maybe...

Yes but this won't come this fare because there are multiple situation how Twice can end

1: They Disband in a bad or good way for some reason and everyone do their own thing.

2: Some members have enough of JYP and the leave the company but they say that they still in Twice but there will be zero promotion.

3rd: JYP don't care about Twice anymore and give them zero promotion till they all leave.

4th: They all have enough from JYP and leave and but stay together and make their own Company an promote till they have enough from the Idol life.

They better spend time with their grandkids