But there has been lots of restoration work in the last ten years, concerning early Lubitsch, and a lot has been released (Sumurun is also a restoration for example). 
Btw. did you know that Lubitsch's "When I Was Dead"v from 1916 was discovered in the Slovenian Film Archive in the 90s? I saw it at the cinema in Germany a couple of years ago, and the copy was ina pretty good shape, considering its age.