Oracle has just posted the roadmap for JavaFX 2.0 here. Also, you can hear the plans first-hand via the JavaOne "Future of Java" keynote taking place on the web here.

In summary: -JavaFX Script will be going away in favor of a Java API that can be called via Java and other dynamic languages -Binding and triggers will be supported via Java -Support for multi-threading will be enhanced -New classes and support for sequences and observables will be added -Smaller on-disk and in-memory footprint -Far better performance -Improved startup time -Complete keyboard focus and navigation support -Extensive, comprehensive, blueprints, best practices, and examples will be included -Improved animation transitions -Texture painting added -Improved layout and containers -Improvements to media support including HD video, low-latency audio, full-screen support, media markers for easier programming around video -Many other improvements including an integrated web browser, various UI controls, a media player control, and a new plugin that supports Prism (a new high-performance rendering engine).