That photo is right before this one:
I think it's from when Palpatine, Obi-Wan, and Anakin all got to the Senate building after the rescue. An extra moment where Palpatine (preceded by his guards) gets off the airspeeder in an echo of Episode I and premonition of Episode VI, that was cut due to it not really being necessary. Instead, we now cut from the overhead establishing shot to Anakin and Obi-Wan arguing about who's going to be the one getting all the praise for this.
So now we also know how they were sitting in the shuttle in Episode VI.
--Jonah