It´d be nice if players would be able to share Objects, Assets, Audio Files etc. via the Steam Workshop when the editor is out. This would make creating a route easier and faster and overall would make the editor more accessible for beginners.
I also hope we see Steam Workshop support. Workshop just makes things so easy. But I'd like to see some better support than TS2018 has, as it would be so much better if we could upload reskins and scenery objects to workshop, as well as uploading routes and scenarios. The possibilities would be limitless if everyone had easy access to new scenery and paint jobs.