I am really anticipating the Ewok battle pack with all new Ewok characters in it coming as an exclusive to TRU.
Each movie has some options left for getting out kind of obscure or not-well-known characters that haven't been made before.
What are you interested in?
Here's my list:
Naboo - Soldier in green jumpsuit (perhaps Asian), black ethnic variation on Security, handmaiden in purple (Senate), white officer (similar uniform to Panaka's), black pilot (Bravo 2 I think). They still have the woman pilot (Bravo 3 left) and an astromech could add a droid. But some variation of this possibility. Add the Hanger Droid and various Naboo weapons like ascension guns, Naboo rifles, and the throne hold-out pistols, etc.
Pod Racers - just like the current set, but have Ark "Bumpy" Roose, Wan Sandage, Adar Beedo, Bolls Rohr, and Elan Mak (spelling) or something like that group. Maybe add a pit droid or the folded up prop of one and some of the stuff from the old E1 Pod Racer Accessory Pack that was very hard to find.
Senators - Anaconda Farr (realistic), Bail Organa (ROTS senate look), E.T. Senator would be too good to be true, the Gragga senator, Sei Teria (secretary), Palpatine (AOTC red outfit is different from ROTS one), Padme (ROTS senate look).
Club Outlander - bartender (Bufon Terieia - spelling), Weequay pirate, Nyrat Agira, tough guy with long hair, Asian dude (was actually outside and Art Director Doug Chiang, I believe).
Dexter's Diner: Hermione Bagwah, old Dug, woman bounty hunter patron, freighter pilot/smuggler, maybe another waitress droid
Kamino - Kaminoan scientist, kid clone 1, kid clone 2, Kaminoan worker, maybe an observation droid? Or realistic training armor clone (like the animated version's style). Perhaps wet-hair Obi-Wan from E2?
Separatists: Senator Tiikes (Quarren), Geonosian Honor Guard, Rogwa Woodratta, maybe the Orray would come with this, and a Geonosian Warrior that could ride it?
Utopau - a fat Pau'n, Utai Security, Battle Droid, maybe the flying dactyl beast could be included? And another Pau'n to ride it. Maybe another Utai Security soldier.
Opera - Mon Calamari Dancer 1, Mon Calamari Dancer 2, lizard alien from Palpatine's box seats, Twi'lek girl in long white dress, luxury droid
landing platform - Padme - hair in buns, JarJar E3 - perhaps it's the robes from Padme's apartment in AOTC?, luxury droid (different color), Corellian Senator Fang Zar, Republic Intelligence Director Isaard (Ysanne's father).
Polis Mason birth - Padme in birthing attire, medical droid 1, medical droid 2, fat Polis Mason, additional polis mason from flight hanger, baby Luke, baby Leia
Naboo funeral: Ruwee Naberrie (father) Jabal Naberrie (mother), Boss Nass, Sio Bibble (E3), Queen Apalieena, perhaps dead Padme?
cantina - Tzzizzt, Ranat, missing Duro (yellow jacket), space suit dude, Jenny (cut scene)?, or Moisture farmer / smuggler.
Cloud City - Bespin Guard with mustache, Ugnaught, female civilian, Imperial officer, Stormtrooper
Jabba's - Cane Adiss, Fozzic, Tayn dren-Garn, other outfit for Sgt. Doallyn, Gizzum (Snaggletoothe), Ariel (Mara Jade in disguise)
Death Star - Imperial Dignitary Sim Aloo, Imperial Dignitary Sate Pestage, Palpatine with throne chair, Imperial Officer, perhaps Death Star II computer display access station (like in the Emperor's throne room), perhaps electro-shocked Luke Jedi
Anyway, these are some of my ideas to get obscure figures out there.
You could also do an all-Padme pack again, but this time no TPM figures:
Yellow waterfalls, packing, Senator, AOTC nightgown with kohouon creatures, deleted scene, Lars' garage, pregnant Padme Senator (Palpatine's speech), Rumintions, office Padme (ROTS from Anakin's visit with her headpiece), and I'm sure I forgot a few but I was trying not to retread on ones I suggested above. Thing is, some of the AOTC figures would make great carded figure choices for Padme (yellow waterfalls and Naboo Senator or Packing, especially - maybe her Senator outfit from ROTS).