While trying to find some Qt5 binding for Julia, I only found the Qt5 startup projet from Tom Breloff https://github.com/tbreloff/Qt5.jl which is intended to bind the full feature from Qt5. This is a huge task and will take some time.
So I wonder if there is some interest for a QML binding which would allows Julia code to display simple QML file (with callback to Julia methods!).
I just found a git repository about two QML library which could serve as a basis and as an example: