Here is the full list in case anyone is interested. I do not "actively" track these, like in years past. It is "possible" one might have landed on Ebay and sold under the radar. The list is a collective effort of two thread on RS and many gracious replies..
ROTJ 79 Back Confirmed List
*Recently confirmed
1. 8D8
2. 2-1B(*)
3. AT-AT Commander
4. AT-AT Driver
5. AT-ST Driver
6. Ben Kenobi(*)
7. Bib Fortuna
8. Boba Fett
9. Bossk(*)
10. B-wing Pilot
11. C-3PO (Removable Limbs)
12. Chewbacca(*)
13. Chief Chirpa
14. Cloud Car Pilot
15. Darth Vader
16. Dengar
17. Emperor
18. Emperor's Royal Guard
19. Gamorrean Guard
20. Greedo
21. Hammerhead(*)
22. Han Solo (Hoth Gear)(*)
23. Han Solo (Large Head) new pic(*)
24. Han Solo (Trenchcoat)
25. IG-88 (*)
26. Jawa
27. Klaatu
28. Klaatu (Skiff Guard Outfit)
29. Lando (Skiff Guard)
30. Lando Calrissian(*)
31. Leia Boushh
32. Leia Poncho
33. Logray
34. Luke Bespin (Brown Hair)(*)
35. Luke Jedi
36. Luke Hoth Outfit (*)
37. Luke X-Wing(*)
38. Nikto
39. Prune Face
40. R2-D2 w/ Sensorscope
41. Rancor Keeper
42. Ree Yees
43. Rebel Commando
44. Snaggletooth
45. Stormtrooper (Imperial)(*)
46. Stormtrooper
47. Teebo
48. TIE Pilot
49. Tusken Raider(*)
50. Ugnaught
51. Walrusman
52. Weequay
53. Wicket
54. Yoda
55. Zuckuss
Unconfirmed List:
1. 4-LOM
2. Admiral Ackbar
3. Bespin Guard (Black)
4. Bespin Guard (White)
5. Biker Scout
6. Death Star Droid
7. FX-7
8. General Madine
9. Imperial Commander
10. Lobot
11. Luke Skywalker (Original)
12. Lumat (Anakin Offer Only)
13. Nien Numb
14. Paploo (Anakin Offer Only)
15. Power Droid
16. Pricess Leia
17. Princess Leia (Bespin)
18. Princess Leia (Hoth)
19. R5D4
20. Rebel Commander
21. Rebel Soldier
22. Squid Head
23. Star Destroyer Commander