I'd be interested to see some non-text super-IDE integrated programming languages. Maybe even hosted in the webbroswer. I think that's interesting territory that can unlock a lot of value. Simple instant variable renaming, far better commenting and interactive debugging that can all be stripped from a compiled final version etc.
Have you looked at visual scripting which is popular in games? It may or may not be what you want but it is non-textual way of creating logic. UE has Blueprints, Unity has Bolt (as well as 3rd party ones available on their asset store, but Bolt is the one Unity purchased). Godot had one though it is being taken out of the core engine in 4.0
