If they’re announcing on every news channel and rushing everyone in like this I’d imagine she’s had a stroke or heart attack. Maybe it’s even a bad turn with covid / pneumonia.
Using words like ‘keeping her comfortable’ whilst people are flying in with such urgency means it’s likely the end.
For a while I thought it may just be a bad fall or something.
I reckon we’ll lose her within 48 maybe 72 hours, or sooner. Or she already passed earlier and we are just going through formalities for the sake of the family.