What figures could be re-released on Legacy cards, with little or no updating necessary?
Personally, I really want to see that 1997 Bespin Han Solo re-released on the new card. That is one awesome figure, and just think of how much better it would look with the more varied paint schemes Hasbro uses today.
The AOTC R2-D2 on a string was pretty freaking sweet, too. Maybe they could re-release it with a Dagobah paint scheme.
Wouldn't hurt to put out Sio Bibble and Holo Sidious, too, since no one ever got them.