I think they all would make swell 12 inch figures.
They also represent the only "Hole" preventing us collectors from owning 12 inch versions of each of the original 21 vintage 3 3/4" figures that made up the Classic Star Wars line.
The following have all been done.
3) Darth Vader
4) Death Squad Commander
5) Death Star Droid (although the color is of a different model)
7) Han Solo
9) Leia (Classic)
10) Luke (Tattoine)
11) Luke (X-wing pilot)
12) Obiwan Kenobi
15) Sand People
16) Storm Trooper
17) Walrus Man
and of course . . . the ESB preview figure
18) Boba Fett
Isn't it time we get the FINAL THREE? Plus they'd all be such cool figures! Two Classic Aliens and a nifty old Droid. All would surely be way cooler than the Death Squad Commander in my opinion . . .