First off, as always, take this with a grain of salt. This is based on third-hand information. I just happen to find it compelling enough to pass along. While I generally try to avoid rumor-mongering, I think it’s worth giving preemptive feedback sometimes.
User WayneStarActionF at the Rebelscum forums has made what I think is a decently convincing case (based on what he claims is inside information) for the line-up of Star Wars Black 6″ Wave 4. WayneStarActionF also states that while Wave 4 is disappointing, Wave 5 is amazing and consists entirely of Original Trilogy characters.