I always thought it was interesting that Hasbro remade some of the vintage figures as tributes to the original line. These are the ones I know about...
1995- Classic Edition 4 pack (Luke, Han, Chewbacca, Vader)
1996- SOTE 2 pack IG-88 (Retooled with waist articulation)
1997- EV-9D9 (Retooled with thicker legs and unmovable jaw)
2010- TVC Rocket Firing Boba Fett (Retooled rocket pack)
(I believe that's all but feel free to add if there's more)