It looks like Threepio hasn't had his polish finish yet, maybe he gets that in Ep3.
Also notice that Artoo is very clean.
The fact the Threepio and Artoo are together might suggest that someone from Naboo, probably Padmé, is back on Tatooine trying to hide from someone again...and somehow ends up in the Lars homestead as seen in one of the select images.
Agreed, I think the look of Threepio is what we will see throughout bthe movie once his shell is added. I haven't actually seen the 10 minute special but I have seen a load of stills (on TFN I think) and they all show Threepio in this state.
Perhaps part of the prologue scene (the one are the climatic sceen) will show him polished up as they did in iv, v & vi.
THose 3 images can tell alot about the story. Here's my 2 cents worth:
1st pic: C-3PO and R2-D2 together once again. I'm glad C-3PO has'nt gotten his polish yet, cause if he was all shined up when his plating was put on, it would'nt make sense, also..now maybe we know why is Left leg is that un-polished color, cause he was'nt finished yet, whoever it was who was polishing his leg. I think C-3PO got his plating on by Watto and his Pit Droids, which I hope we'll see in Episode 2. C-3PO will begin in the film, with him having 45% of his plating done, and gets the rest done elsewhere, or on the Royal Starship en-route to Tatooine..when they leave the planet, his memeory is erased by somebody, maybe Anakin..maybe he does'nt want him to tell anybody on Coruscant what took place on the planet, cause maybe he opens his big mouth or something, who knows..also deletes R2-D2's memory as well, but leaves the friendship memory intact..or is that dum?
Pic #2: Anakin in Nightclub - Anakin has just witnessed a assassination attempt, and begins the chase after Zam Wessel.
Pic #3: Owen Lars, he sees somebody at the door.
Later
-SS