I think Camel 2.0-SNAPSHOT can work with latest CXF 2.1.x-SNAPSHOT , so you don't need to upgrade the CXF version to 2.2-SNAPSHOT.
But there are some API changes between the Camel 1.x and Camel 2.0. I'm not sure if the build can work.
Indeed, I cannot build the project if I use camel-2.0 SNAPSHOT and CXF-2.2 SNAPSHOT. I will try to build it with only Camel 2.0 SNAPSHOT.
I was failed to build the features/camel/servicemix-camel with Camel 2.0-SNAPSHOT.
Since there are lots of API changes in Camel 2.0-SNAPSHOT.
If your camel doesn't interact with the jbi endpoint, maybe you could try to install the Camel 2.0-SNAPSHOT features in Fuse ESB 4.0.4.