I feel like by the time the key players in fourth gen finish debuting, it'll be time for the fifth gen

I think you may be right, 5 usually comes after 4.

Unless you're Red Velvet, then it comes after 2

I think it's time we stop putting groups into generations

Quote from fdblink

I think it's time we stop putting groups into generations

if there are no major changes, how about make it as minor change like 4.1 gen, 4.2 gen, etc?

i only know kpop generation the rest is just pointless