Features that haven't been in other zoo games before that could be added:
-Bring Back Petting Zoos But With Feeding Also (Well they already covered this in Planet Zoo 1 now but they should port it over to PZ 2 but with less weird domestic species and maybe only a couple of them in the base game, not an entire pack dedicated to domestics. It could just have pygmy/dwarf goats, a generic white sheep breed, and a generic miniature donkey breed, as all I normally see at petting zoos anyway are goats, sometimes sheep, and occasionally donkeys. A new feature that could be added would be to buy cups of special feed to feed the animals in the petting zoo as well as pet them. And of course, exotic animals like wallabies, smaller deer species, and smaller antelope species could also be included in the petting zoos.)
-Bring Back Animal Interactions including walking through habitats and viewing domes (Allow animal interactions with harmless animals even if they aren't petting zoo animals. Also allow guests to still walk in habitats with harmless animals again even if they can't interact with them. Bring back viewing domes.)
-Bring Back Safaris/Feeding and Photos Now Included as Well (Safari vehicle rides are back but the twist is that guests can now buy cups of feed to feed the animals and carry cameras with them. The safari rides will stop so guests can feed the animals and/or take photos of them.)
-Giraffe Feeding (Guests can buy lettuce and feed it to the giraffes.)
- Fish/ Fully Aquatic Animals/ Aquariums (Besides actual aquarium simulator games, the closest any other zoo games have gotten was to have Sea World type expansion packs which included mostly aquatic mammals like seals, dolphins, and whales. We need aquarium tanks and buildings where we can put fish and fully aquatic amphibians.)
-Flying Birds/Aviaries/ Parakeet Feeding Interaction (Besides a general aviary where birds can fly around the guests, many zoos also have an area where you can feed parakeets nectar on sticks.)
-Reptile and Amphibians Houses (Be able to build terrariums for reptiles and amphibians and put them in a building that becomes the zoos Reptile House. This is a necessity in cold-climate area zoos in real-life.)
-Nocturnal Animal Houses (Perfect for bats and other strictly nocturnal animals to be comfortable in a nice, dark indoor space.)