Next Steps
W3C has a solid platforms for all voice applications, there are just a couple of specifications to finalise. However the group will not stop there. New requirements arise, to keep up with both developments of the Web, and developments of voice platforms
New versions
VoiceXML 2.1. New features: dynamic grammar/script references, fetching external data, recording utterances, etc.
Say-as: one particular element of SSML: how to specify regional/foreign accents is difficult, and more control is requested than what's the current spec.
New specifications
Lexicons, n-grams, VoiceXML session transfer, etc.
V3
The next generation of dialogue languages
So far only requirements have been expressed: ongoing integration with ongoing web technology (CSS3 speech), integrating Voice controls within voice languages (XHTML+Voice, SALT).