- Bi-directional audio support.
- The licensing component will be pulled out of the data store, allowing for a separate license server.
- Licenses may be shared across farms.
- Sessions can be managed across farms.
- Users connected via the Web Interface will be able to launch RDP sessions.
- There will be an MMC-based management console.
Not that it really matters, but I got most of this information via an IM conversation with someone who's not attending the show.