I was including PZ reddit and twitter in this though, and there were a lot of people on both that were disappointed.Tbh, only 5 users or so on this forum were actually upset about it. They just posted a lot in a lot of threads.
Some were not expecting or hoping it would happen but only a (slight) disappointment.
Would be nice but I hope people actually learn from last year's experience and don't expect it this time. Only 2 games (JWE/PC) got an anniversary update, all their other games not.
As far as the aviary dlc thing, I do think they'll have one or two birds for free, because I think, like the diving system, the aviary system would need to be implemented in a free update rather than a dlc, simply because that gives us the chance to have, say an Endangered Species pack that also has 1 or 2 birds, like the Bali mynah or something. That way someone doesn't have to buy the aviaries dlc to use the birds from another dlc, if that makes sense.