I’ve seen other people on here mention this before, but with her getting married, trying to start a company and posting way less this year, I think she’s preparing to retire.
There’s a part of me that thinks the “this is when I was my heaviest” and the marriage/ slowing down might be she got knocked up and isn’t ready to show off any changes that might be happening.
She didn't forget about old sets, she's just not prepared to do much work at the moment. So she releases these 'forgotten' sets as a place holder until the time she has new content.
Someone said it before but my bet is that very very soon she get's pregnant, perhaps she is right now. Then her OF will be closed down for good, hence her trying to prepare this new business venture she has.