To help illuminate where Apache Karaf is heading over the next few months I thought I'd write up a brief post on our current roadmap. We are planning to have at least two more releases before then end of 2010.
Apache Karaf 2.1.1:
A maintenance release which will only include bug fixes to the 2.1.0 release. No new features should be included.
Apache Karaf 2.2.0:
This release will include all the new features, fixes, and other improvements introduced to trunk since the 2.1.0 release.
We have not set target dates for each release, so I can not comment on what specific fixes or features will appear in either. However, I can indicate that work is underway :)
If you have particular issues discovered in 2.1.0 that you'd like to see addressed in 2.1.1 please feel free to vote up issues in our project issue tracker.