Depends on what you want from Qt.
If you are the developer, it's great! You can now static link your application into one file if you you use only Qt libs without being forced to license your code using GPL or buying a commercial license. You still *can* give your code away, but you don't have to.
If you are an end user of a Qt application, nothing really changes for you, except that subsequent software deliveries get simpler to install. Now you don't have to make sure all the necessary shared libs are available when the application needs them. You may or may not be entitled to get source code, but that's not changed.
For Qt it means that more people will use it for all sorts of things because now developers can protect their code using any license they choose.
Except for the end user, who really won't see any difference, Seems like an upgrade to me. Developers get to choose what license suits their business model and Qt get's used more.