Hi

There isn't an "official" roadmap, but version 0.8.1 is coming soon and it should have at least these new features:

- reduced memory usage
- a resolution factor for each layer (so you can have layers at different resolutions)
- support for rotating sprites
- the ability to unload audio files from memory

Longer term, 0.9 will have a completely rewritten audio system, using the WebAudio API where possible

The plan is to also release some of the plugin's at some point soon, but there is no set date for those. If, however, you want to use them earlier, just ask and you'll get them (although the documentation is still not finished)