I'm not sure what there is to come back to. She's still gone, and I imagine she will be for good this time. She might come back with some message saying "I'm sorry for being away, but I was anxious. I'm planning to stream tomorrow again, and release a video this weekend. Toodles." -> Queue absolutely nothing except for another disappearing act without saying anything.
She said she'd be editing videos, but I don't know what videos she was talking about. She mentioned a second YT vid, when she posted her last one. She also mentioned some test vids she made for OF, but I guess they didn't pass the test, since she never posted them. At this point, we can't believe anything she says anymore.
you're over thinking it, most likely she went ahead with the surgery earlier than expected and she's recovering and stuff (maybe even mentally, despite being the looker she is, she's got some self esteem issues clearly) and will eventually go back to making videos, she's not going to lose the money machine OF is to her anytime soon, she being silent may be related but yes, she should've let her subscribers know 🤷♂️
We've seen this countless times before: every time some ASMRtist builds a studio to record in, they quit and leave the internet forever upon it's completion. At this point I'm beginning to believe it's some cosmic curse.