Personally I'd love Tuojiangosaurus... it's basically the Stegosaurus of China and one of the most important stegosaurs in general, making its absence a bit weird... I fear however the similarities to Chungkingosaurus and the abundance of Asian stegosaurs in the game however might hold it back.
Apologies if it sounds like a dumb question, other than the thagomizers, do Chungkingosaurus and Tuojiangosaurus look and behave the same?