While HTML apps won’t be supported in Windows Phone 8, it will have some features that make it less of a problem i.e. the ability to create text boxes that behave just like their HTML and XAML counterparts. Speech recognition is now possible, deeper camera configuration, Bluetooth stack (which lets two phones to communicate running the same app) and in-app purchasing. It sounds like we’ll be able to have a lot more complex and useful apps in Windows Phone 8 thanks to all these new APIs.
However, since these APIs were discovered in the preview SDK for Windows 8, you should be able to expect a lot more features to come in the future.