As the goal of Drag and Drop Uploading is finished the development changes now to the front end side.The code will be rewritten to match standard J3x behavior so user can override layouts by them self. So old css layouts shall still exist. Parallel we will add new responsible layouts which can be swlectet as menu or in modules and plugins. We will keep in mind that a transition to J!4 is due shortly. Sadly the change to J!3x is the basis for this. For J4x we may or better we are willing to throw out ild legacy code.