I feel that the close reason for "Questions regarding future unannounced events" should apply to All future events.
A typical question that is closed under this is: "Is 'My little sister can't be this potato' getting a second season?'
If you don't know the series, you can't 100% confidently close this question - Maybe a season 2 was announced and you didn't know about it.
If you know the series you can close it or leave it open with confidence, because you likely have been keeping up with news on this topic. If you come to the question late however, and it is already closed - you could argue that It has been announced and therefore vote to reopen the question.
Having announced questions on-topic is inconsistent and also prone to becoming redundant over time. Can we apply the rule to all future events?