I feel like skaters and audience would benefit a lot from another age category just for the ladies, 15-18 years old and then the senior skaters. It doesn't have to be on the Grand Prix series, because I think this would too much and also it would be interesting to have all the ladies compete together at one kind of tournament. But maybe at Euros, 4CC and Worlds. Seeing Trusova and Shcherbakova, I think it's not fair to let them compete against full-grown skaters, but then it also would be boring for them to compete all the time in Juniors until they're 17 oder 18. This way they could compete for a title with a bigger audience and yet it would keep the motivation for older skaters like Radionova, Pogorilaya who already have retired, or Tutakymsheva, Medvedeva, Sakamoto etc. to keep going. Also for skaters like Zagitova, because she wouldn't have won it all at this point.
And the audience would benefit, because there's even more skating to watch

and to have skaters with more longevity.