Qt QML itself shall become a very small runtime for compiled QML. We might even be able to completely get rid of it. The other parts need to be moved as follows:

• Object model -> Qt Core​
• Compiler and code model -> Own library​
• Item models -> Own plugin or Qt Quick​
• Debugging/profiling framework -> Partly Qt Core​
• JavaScript runtime -> Own library​
• Compiled QML (-> C++/assembly) -> QML compiler tool​
• Runtime for dynamic QML (bytecode) -> Own library​