Friendly reminder that there are Content Creators out there that foucs hard on PZ that still think PZ will get more support, BECAUSE of the current financial situation and because it's still cheaper to support an existing own brand game until the new one is ready. Does that mean anything, because they speculate this? Unfortunately no.
Also friendly reminder that some of the Content Creators that are now saying support will end DID say that back after The AUSTRALIA pack (australia, not oceania). How much that was based on facts, everyone can decide for their own now.

In short: Content Creators are fun to watch, but usually their assumptions aren't based on anything but a gut feeling, so puttting pressure on them or seeing their speculation as hints, does not make any sense.
On a side note, it's also worth noting if Conten Creator are high zoo enthusiasts or high coaster enthusiasts. The coaster enthusiasts are naturally saying PZ support will end and PC2 will arrive soon, the zoo enthusiasts predict an even longer life span for PZ. It's totally biased and that's natural and okay.
My personal
biased opinion? I was sure PZ paid DLCs would end with the next pack. Now... I'm actually hopeful. DeLady is right when saying PZ is probably making more revenue than JWE2, due to not being a licensed game and I could see them change their plans and prolong PZ a little longer. The potential would be there, if they'd (finally) invest again a little more. I don't think it can go on with relatively low free updates and too much clone DLCs however.
Whether they support PZ with more DLCs or not: We have an awesome zoo game with a huge variety at hand that will give us years of fun to play regardless, if we want to. If you think it isn't the best zoo game to date yet, then nothing will ever change that. No birds, no whales, no prehistoric animals, no Unicorns...nothing. All of those are not a game changer, but they most certainly would be a game prolonger.
(Disclaimer: I don't want prehistoric animals and Unicorns in PZ and I don't think they'll ever come)