I think (g)-idle and momoland will flop. I like both but there's problems with the groups and they may not succeed.Firstly, (g)-idle isn't all that? Like, there's not much to distinguish them from other groups. I personally don't find them that interesting. Some of them have unique voices and they do good dancing so I could be wrong. But ultimately they may flop because of their company. Cube has good groups but they're not big three so I mean-
Next, Momoland seems to be a group that was made to only make money. Not to show members' abilities and so on. Momoland had good songs before Bboom Bboom and Baam. Literally bb and b are the same song. Same structure, sound, EVERYTHING. This is the embodiment of "yeah you can copy but change a few things so they can't tell". Jjan! Koong! Kwang! is Momoland's biggest bop. Goodbye.
Tl;dr : Momoland and (G)-Idle's companies suck and will ruin them.