IOC has gender-balanced almost every sport. Wrestling is out of balance (currently men are twice as many). I think the writing is on the wall that it's either going to be 6 weights for women and 3 for each of Greco and Freestyle, or some other combination where men and women get the samen number of athletes in.
Also there is no way IOC is expanding the overall quota for wrestling at the Olympics. Wrestling is not popular. Also there's corruption scandals and overall governance is lackluster. See Chamizo incident, the Russian stuff, Countries hosting and not allowing other countries in (Albania not allowing Iran, Azerbaijan not allowing Armenia). Currently there are 288 wrestlers total competing. IOC is probably looking at cutting this to 250 or less.
One option is adding GR for women and then having 3 weight classes per sport. (3 for FS, 3 WW, 3 GR, 3 GR-W).
Or, with addition of Beach Wresting, GR is removed and it's 3 weights each like 3 FS, 3 WW, 3 Beach Wrestling Men, and women). Maybe FS/WW keep 16 wrestlers in each weight class and Beach wrestling gets 12, so it's about 250 total wrestlers.
Or - having 4 weight classes for FS, WW, BR-M and BR-W, but cutting quotas for each.
This is the future, like it or not