It's clear that Playtonic is still working on animations for the main characters. For example, there is no idle animation for ball roll, yet. However, there is one touch that I would absolutely love to see in the game, one that I hope is not glossed over.
When the heroes are pushed by strong gusts of wind, they move much more quickly. This includes their animations, which is pretty hilarious looking. This includes the Ball Roll animation where Laylee runs on Yooka as he rolls around. When the full game is released, it would be hilarious if a new animation is added. If Yooka is rolling very fast, such as being pushed by gusts of wind, Laylee shouldn't be able to keep up. So instead of running on Yooka, she should grab onto Yooka for dear life and roll with him, perhaps with a funny squeaky noise since she'll pretty much be getting trampled.
It's a small touch that I think would bring a smile to anyone's face the first time they witness this animation.