There’s a shot of Boba right beside Jabba during Luke’s Rancor fight, so it fits well with that.
JEDIT: I also like the questions this Boba plot raises for the Emperor’s arrival scene.
Emperor: “And now I sense that you wish to continue your search for young Skywalker.”
Vader: (long pause) “Yes, my master.”
In the theatrical version, I always interpreted this pause to mean “No shit, Sheev. It’s been my sole character motivation for over a year.”
But in this version, that pause could be Vader wondering if the Emperor knows of his continued attempts to capture Luke on the sly, or if the Emperor knows whether or not his latest attempt succeeded.