Respectfully, you do not fully understand what you are talking about regarding the animation timelines/process. "If" Shrek 5 comes out in 2025 is a non-starter considering that film has not even entered production - these movies take 3 years minimum once they really get going. Animations for experiences like the DWT are not so prohibitively expensive that they necessarily require coordination with the production of an accompanying feature film, though I'm sure that having easier access to the voice talent (if in the budget/used) would not hurt. Illumination animation for attractions is routinely developed by a separate team than the folks working on the feature films, while the Kung Fu Panda film was originally developed for the MotionGate Dubai attraction (with Universal's custom pre-show animation created later).