Savana, desert,badlands

As we all know that Mojang updated swamp ,but mountains were winner of 2019 biome vote but still Mojang introduced new type of swamp and many more in wild update. I request Mojang to update savana,desert and badlands because they also had great features like savana had ostriches,a new tree and another mob , for deserts I'd like to see meerkats, sandstorm only and for badlands vultures ,new cactus and tumbleweeds and I don't like one feature of savana which is termite mound.Add penguin if possible . Thank you