Well, with Jabba himself, there are some limits to what's engaging as a dio and what doesn't end up being close to the 1/6 setup. Even though they are two different lines, I'm sure consideration is made that dios don't duplicate something from PF or 1/6 for people that might buy both.
Off the top of my head, it'd be cool to do a Jabba dio of Luke pulling the gun on him, that's a classic image used often in marketing.
Other than that and Leia killing him, not sure what else would make for an interesting composition that people would buy.
I personally would buy and ANH or TPM Jabba dio because I like the Hutt, but most wouldn't buy anything outside of Jed.