Hey, thanks for your comment!
Yeah, I agree. Mitsui used to be pushed to the front a lot when she was new. Now she's at the back with half of the group, she just got overshadowed.
I hope 10th gen will bring nice new members, but I also want to see more of 9th gen :D
This is just like all the previous additions to the group. Some members will be overshadowed while others aren't, it all depends.
Members like Abe, Goto, Ai, and Reina were never overshadowed while Yaguchi, Ogawa, and Mitsui were. Of course, the Pandas don't really count because they weren't around for ninth gen despite being heavily overshadowed.
If the fans [financially] support the new members more than other members, then the other members are at risk of being overshadowed. I think Ikuta and Suzuki currently have a good chance of being overshadowed, at least in A-tracks, and Mitsui probably always will because she doesn't have a large fanbase. Though I could probably predict this better were H!P Store to stop having major stock issues, especially for Fukumura. XD