JD2019 has a red robot Dinosaur Coach in Sweet Sensation, and JD 2020 has an orange one. I don't know whether that means a rainbow pattern and I guess from this pattern that JD2021 will have at least one song featuring a YELLOW robot Dinosaur Coach, and if that, my song prediction will be Yellow by kz(livetune) :)

Not as popular, but I also want Ubisoft to make a recolored version of Blue (Da ba dee)'s coach dancing next to him.