I originally wrote this idea for inventor, but as i have started doing more stuff with Fusion 360 and seeing the update frequency for Fusion 360 maybe would be done in fusion 360. The idea is that Fusion 360 could have a tool or tools for testing out mechatronic concepts and automation.
I think that would be great for testing out systems virtually. It should have the ability to place actuators and sensors, then program them with arduino as in 123Circuits or have PLC Function Block window, where you have modules, inputs and outputs, so you could already start testing out programs and functions.