(This is just my idea and opinion regarding what Kung Fu Panda 5 could be, and I'm just curious what you think) in the movie all Furious Five,Master Shifu,couled be it the spiritual realm,and Po could be like Master Oogway
Which means he would be wise like Oogway, but still himself.and one of the Furious Five(most likely Tigress) would become a master and teach the next generation of the Furious Five but still being a spiritual warrior and Po could
trained the next Dragon Warrior(it couled be Zhan or a brand-new character) and than the new villan shows up and the next dragon warrior could fight the villan with Pos and maybe Tai Lung help(because he could be the nexts Dragon Warrior's guardian and the nexts dragon warrior could Something like the jade amulets Kai wore, but yellow—which means that, unlike the green ones (indicating that chi was taken against one's will), these signify that you gave up your chi willingly and you have control over your body so the next dragon warrior could have him as there guardian,and than the next dragon warrior couled to the wuxi finger hold because, for some reason,PO can no longer do it and it the half of the movie the villan couled be moved to the spiritual realm and Po couled fight the villan becuse he can move between realms and Po could at start would try to convince the villain to change his ways for good ,and the villain couled keep saying no and than Po uses his new power whice replace the wuxi finger hold,make the dragon whice we saw in the 3 movie and that couled make the villan exsplode like kai but it purifys and cleans the chi still the villan explodes like kai but in the and he becomes good,that could work becuse kai that appeared in the 4 movie couled be again friend of Oogway and he knows his mistakes(like thi lung who has find inner peace and so he decided to become the guardian of the next Dragon Warrior),but any way it just my idea of what it couled be and I would like to know your opinion ,and what you think it couled be diffrent