Qui-Gon's saber will be released later this year. As far as I can tell, that leaves only Mace's TPM saber as the only other unique saber (ugly as it was) used by a major character. However, upon watching a clip of the TPM Maul/Qui-Gon/Kenobi saber duel (I just received my Maul FX and it's a monster to try to maneuver in its double blade form, so I'd figured I'd rewatch the duel to see what Parks did), I noticed that Maul kicked Obi-Wan's lightsaber down the shaft. And now I wonder if Obi-Wan ever retrieved that one, or if he built a new, identical one. If he built a new one, technically, his TPM one could also be released as a .45 replica.
So the possible remaining replicas are ...
Mace RotS (if there are any differences to the AotC one)
Yoda AotC (maybe in a better condition than the RotS one)
Vader RotJ (was this identical to his ESB one?)
On another note, are any of the scaled replica collectors collecting the blasters? I was staying away from them, since they're not quite as memorable of a weapon as the lightsabers. However, if they release Chewbacca's bowcaster, I probably would reconsider that stance for that replica.