But the scene where Chewbacca is brought to Jabba is wonderfully easy to change-- Threepio as an interpreter drops out and subtitles (which are mostly already there) fill in. The shots are mercifully few where Threepio is actually part of the action -- most of his shots are actually of him repeating dialogue that can be subtitled.
The scene is much better as a Jabba/Bounty Hunter face off with only Chewbacca as a sympathetic character. It would play as one of the few scenes where he is featured alone. And as a dramatic and doom-filled way of introducing the palace and Jabba, it will serve well.