Wild. I think today is gonna be it. I don't have an opinion on the person one way or another - Royal Family is generally meh. Just thought about how long she's been around, especially with the influx of the 'Queen is Immortal' memes I've seen in recent years.
Per BBC & a Twitter update from the Royal Family, it would not surprise me if she passes today or has already passed. BBC changed clothes to all black, and I was reading about something called the 'London Bridge' operation which details the protocol for her death. They wouldn't announce it until the evening, even if it's already happened.
Edit: nevermind that was quick