I thought the Shaak Ti scene was pretty meh. It doesn't even make sense for her to be there, and Anakin and Obi-Wan's third base coach-style signals to each other don't jive well with just seeing the death of a comrade. I don't see any advantage to this scene being added. If anything, I want to SHORTEN Anakin and Obi-Wan's time on the Invisible Hand. In the rough III I've been working on, we go from Anakin and Obi-Wan in the hanger, to Grevious on the bridge, to Anakin and Obi-Wan exiting the elevator on the observation deck.

And yes, all the deleted Padme scenes about the Rebellion would be included. I wish Lucas would release ALL the deleted scenes, because it would be great to have that missing Padme/Obi-Wan scene too.