I doubt she will step back. She might not have much engagement or put lots of effort in it, but it was always just for Funsies to her anyway. As long as she might get a Dior Advent Calendar out of it, she will do some videos. She will probably step down even more, and I definitely can see her making a pregnancy announcement or maybe opening up about her fertility/health issues and what the next steps are. I think at the last update her levels still weren’t great, so maybe that has been sorted and they conceived? Or she will have to go on some medication, do more tests, start looking into other fertility treatments.
She might also have decided not to do the monthly favourite anymore- I totally can see this to be an emotional decision for a YT, end of an era
(they are always so dramatic about the most basic stuff)
Or maybe even the good decision to stop involving River in her videos.