Star Wars Rogue One: 8 Things We Learned From New International Trailer
2. Jyn's Driving Factor
As already mentioned, the initial mission objective for the Rebel Alliance will not be to steal the Death Star plans. Jyn's basic involvement also will not be to help the rebels. On a clear path of her own at a young age, Jyn is out for revenge after the Empire destroyed her family by taking her father away and potentially killing her mother (assumed).
The apparent message across all of the trailers has been Galen telling his daughter everything he does, he does for her. His goal is to protect his family, specifically his daughter. Jyn will start out as a child that lost everything, eventually finding the Rebel Alliance to restore her hope.
With the international trailer once again encouraging the interaction between Galen and Jyn, a new tidbit is introduced with her mother giving her a necklace with what appears to be a Kyber crystal attached. The trailer then flashes to an older Jyn, still in possession of the necklace. The significance of this necklace is up for debate. It could simply be a token reminder of her lost parents or something deeper. Perhaps the hidden plans have been in her possession the entire time?