Some more details are starting to emerge about what will appear in FreeNAS 0.8:
Planned major features:
- Development on FreeBSD RELENG_8. Release, depending on timeframe may be based on a RELENG_8 snapshot or 8.1-RELEASE
- Migrate off m0n0wall
- Migrate GUI to django
- Add support for ada and ahci SATA drivers
- Add optional SoftUpdates + Journaling support to UFS2 filesystems
- Migration path/tool for previous releases and configurations
- Preservation of all existing features of the current FreeNAS release
- Refactor FreeNAS build system to allow building FreeNAS without affecting the host environment
- Non-Blocking Features
Possible other features
- FreeNAS package support. Binary one click installs that modify the GUI dynamically.
I am sure this list will evolve and you can keep an eye on the current developments here: http://freenas.org/roadmap