Just a thought to make the ending more doable, as much has been said critiquing the realism of the Ewoks and a dozen rebels defeating a legion of the Emperor's best troops. I've not thought it through enough to consider available footage, just a concept.

The Rebels allow themselves to be captured upon reaching the bunker. The Ewoks ambush the Imperials. While the soldiers are distracted, Han successfully hotwires the bunker door and he and a few Rebels enter. Use the deleted scene coming in the Blu-ray to show a battle within the bunker. Han manages to sabotage the generator, and from there...I don't know how he escapes. It just occurred to me. Someone else can take it from here if they want, and perhaps explore if it's even feasible with available footage.

As Queen Amidala said: [using as little emotion as possible] "The battle is a diversion."

Any thoughts?