Suggestions for Irwin Kershner cameos:

(1) the aforementioned hanger sequence (maybe replace one of the original three)

(2) there are shots of Kirshner in a blue coat directing the rebel soldiers in the trenches; maybe change his coat color to white and finagle it so he appears (in the foreground - EDIT: may have to put him in mid to backround, as only resolution of Kirshner directing in the trenches may only be from DVD source) as a rebel officer in the trench giving orders to the troops.

(3) make him one of the control room operators in the background (ie. the ion cannon control room).

(4) have him directing some of the troops behind Han during his Taun-Taun scenes.