Something I'd really like for the main TSW3 release is an option to toggle the low horn on the free camera as at the moment one tone is available. I know you can 2 tone on Immersion controls but I'd also like it formatted on to the Classic Controls.
If you use a keyboard whilst using classic controls you can get 2 tone by pressing space for one tone and N for the other. It's highly unlikely classic controls will ever be updated.
You can use a keyboard on PS4. I did and found it so much easier than messing around with the cursor to move levers and press buttons for lights etc.