Hasbro’s action figure packaging from the floor of San Diego Comic Con has offered further elaboration around R2-D2 and C-3PO role in Star Wars Rebels:
C-3PO and R2-D2 unknowingly play a part in helping the Rebels intercept a shipment of Imperial weapons.
We learned some more about this from the recent guide released this week:
Now they have been given a new mission: helping to negotiate an Imperial arms deal. On this mission they meet some of the rebels.
The two droids are in the service of Bail Organa who owns them, but they on loan to Governor Pryce of Lothal.
It sounds like the two might pop in and out of the series from time to time but are far from key players in the series. With Pryce and Organa having a friendship and political ties, it is safe to say we will see the duo in the series again thanks to this link. Governor Pryce is viewed as weak and merely a puppet of the Empire after the occupation, so I sense he will need Senator Organa’s help in the future.