Captain Silvo from the opening is definitely Jude Law's character, I'm not sure if that is supposed to be mystery or a twist with how it is telegraphed, so I wonder if the Twist will be how much of his actions are under the orders of Brutus and the other Pirates to get the location of At Attain from the kids and if when he changes his mind and helps them altruistically. Plus whether or not his Force Powers are a con meant to make the kids trust him.
As for At Attain, with the description of the "eternal treasure," the pristine Old Republic currency, and all of the talk in the classroom in relation to economics, ledgers, and the fungibility of currencies, I wonder if it is bank, vault, or investment planet where the Old Republic stashed a bunch of money and erected The Barrier to shield or hide it from the rest of the galaxy so no one would be tempted to rob the place, but then it's coordinates were lost in some bureaucratic mix up or natural disaster and they were left to just continue on oblivious to the rest of the galaxy.