Well, it seems like ideas is where this thread is heading, so here's mine. I've been thinking about an idea like this since the cinema scenes were out. Obviously, all these would be super articulated...
Han Solo Evolution Set
* Han in Stormtrooper disguise (This could easily be the VOTC Stormie with Han head and removeable helmet)
* Bespin Han (with respirator and blaster)
* Endor Han (with removeable soft-goods trenchcoat, blaster and explosive charges)
Luke Skywalker Evolution Set
* Luke in Stormtrooper disguise (This mold would need to be altered slightly to make Luke a little shorter)
* Luke in Bespin fatigues (with blaster, lightsaber, attachable lightsaber hilt, removeable hand)
* Luke Jedi (Final duel version with lightsaber, attachable lightsaber hilt, manacles)
Princess Leia Organa Evolution Set
* Leia in white gown (with either softgoods or removeable hood, sporting blaster, manacles and stormtrooper blaster rifle)
* Leia in Hoth gear (with respirator, goggles and welding torch?)
* Leia in General's uniform (with blaster pistol, softgoods poncho and removeable helmet)
Stormtrooper Evolution Set
* VOTC Stormtrooper (with ball-joint hips, blaster rifle and larger rifle)
* Snowtrooper (with softgoods "skirt" piece, softgoods face guard, and blaster rifle)
* Scout Trooper (with blaster pistol)
Obi-Wan Kenobi Evolution Set
* Obi-Wan Kenobi Padawan (TPM version with soft goods robe and skirt piece, lightsaber and attachable lightsaber hilt, respirator, and commlink)
* Obi-Wan Kenobi Jedi Knight (AOTC version with soft goods robe and skirt piece, lightsaber and attachable lightsaber hilt and pilot headset)
* Obi-Wan Kenobi Jedi Master (ROTS version with soft goods robe and skirt piece, lightsaber and attachable lightsaber hilt)
Jedi Evolution Set
* Qui-Gon Jin (with removeable soft-goods robe and skirt piece, lightsaber and attachable lightsaber hilt, respirator, commlink and softgoods poncho)
* Mace Windu (with open eyes, shut mouth, softgoods robe and skirt piece, lightsaber and attachable lightsaber hilt)
* "Ben" Kenobi (with softgoods robe and skirt piece, lightsaber and attachable lightsaber hilt, training remote and blast shield helmet)