Wasn't there a confirmation that the anniversary event MAY be held between Halloween and Christmas event? So if you're talking about delayed events since June, you're right, but that's not the context.
Apart from that, we cannot say that this event has been delayed again when the christmas/holiday event itself has not started. I think we can discuss about this event again if there is no confirmation, at least until the end of December (the usual date of christmas/ holiday event).
Lastly I just want to say that:
just guessing and can be misleading. But
This:
Maybe can be discussed (the feature, the reward, vanity, etc). I don't mean to be rude, but I think you should know how differentiate between what can be discussed and whats just flooding, spreading misinformation, and/or spam.