OK, so we agree that:
1. It won't have new features since it's feature complete.
2. Nothing will basically change.
3. All new development of Qt project is done in QML.
4. New features will be added in QML only. So, if some cool widget comes along in a new OS version, you don't have it Widgets anymore.
For me, it's all but obsolete. If you want to argue about English usage, then that's fine.