I'm not sure its enough to build an entire episode around.
I'd rather see and Episode VII where Luke turns to the dark side--following in his father's footsteps. But thats just me.
On the Episode 3 1/2 issue, I think there is heaps of scope for an in between story. It could introduce the character of Hans Solo, and how he came to partner Chewbucca, and how he came to be indebted to Jabba the Hut, and the conversations Ben Kenobe had with the ghost of his former mentor (given Yoda taught him this power), not to mention Luke and Leia's upbringing.