Given that the announcement of Queen Elizabeth's death is supposed to be the final marker before the white hats begin their public takedown of the cabal, I suspect 2 things:

1. This is almost certainly true, as rumor has it she has already been dead for some time.
2. This was either a legitimate mistake, or someone is trolling people who are waiting for this announcement

I think it will be officially confirmed sometime over the coming months though, and once it is, get ready.