This is an interesting prospect, but I wonder if the way the predictive inputs would work might be considered unfair in a competitive setting, similar to how some Razer and other keyboards' "Snap Tap" ability was banned from CS2 due to giving their users an unfair advantage.
The Switch 2 joy-con controller may exceed expectations for innovation. If a new Nintendo patent is implemented, the joy-con could compete with the most advanced controllers. What are the other benefits of a controller learning a gamer's habits?