Animatronics still have the potential to be amazing, but they'd really have to be impressive robotics. On top of that, they would have to be weather-proof.
Also...monkeys? Maybe not the best choice for this attraction.
If WDW is updating the ride to remove ride elements that are now considered taboo/racist, then it is extremely tone-deaf/dumb/poor choice to replace those elements with 'comedic monkeys.' Millions of animals live in jungles, why choose the one type of animal that has a very long and very well-established association with American racism? That would be absolutely the dumbest choice WDW could possibly make in this situation.