The dates for JavaOne have been announced - October 2-6, 2011 in San Francisco. This year even though JavaOne will be running concurrently with Oracle OpenWorld it will be treated as a separate conference. The Java tracks are:
Core Java Platform
Emerging Languages, Tools and Techniques
Enterprise Service Architectures and the Cloud
Java EE Web Profile and Platform Technologies
Java ME, Mobile, Embedded, and Devices
Java SE, Client-Side Technologies and Rich User Experiences