For whatever value a consensus is worth.
Assuming the medical condition is real, then it's likely been known for some time. Lymphatic issues are common among people who have various -ectomies to remove organs/tissue. Her recent "accidents" are likely her simply breaking down and the media releases part of a scripted scenario where she takes a sudden turn for the worse and is gone.
Her constant lack of energy suggests not just old age, but also some manner of ill health or treatment side-effect. Something has been woefully wrong with her for some time, and she has been rigged up to remain on the bench for as long as possible… But her body has limits and has been dragged along too far.
If it's to this point, where they are suggesting she's had a major surgery, then she's probably got a week or two.
If it's all a cover for legal action…. Then she's already effectively out of play and won't be returning. So the death will be declared when it's convenient for Q team. I don't have a solid bead on when that would be.
The other question may be… Has anyone actually seen Ginsberg since she broke her rubs?