I hate that I never saw TPM in 3D when it was in theaters. I wish they went ahead and released them all in 3D. I wonder how much of the work they completed? Just imagine the trench run in 3D!
I believe Attack of the Clones and Revenge of the Sith were finished as I remember hearing about them being shown at Celebration in 2015. I can’t say for the Original Trilogy though.