I feel that since Girls’ Generation’s reign in 2nd gen, and then with TWICE after them in the 4th gen, there seemed to be a pattern of 9 member ggs reigning supreme in their respective generations.
However, 4th gen broke that mold with how the trend became smaller ggs and appealing to the western market. Could a SNSD/Twice like group with 9 members have survived in Gen 4 or was IZ*ONE the closest we’d get to that? 
