This teaser reminds me of when carmen sandiego stole all the records in the can you ever go home again episodes.
i wonder if she’s looking for proof of something
Actually, the only thing that wasn't stolen at the Louvre's Apollo Gallery is the Regent Diamond, figure no one would take it because something to do with a curse.
I've also found that the two thieves were leaving for Algeria, thanks of a trace of DNA evidence recovered from a helmet and their past in burglary cases according to the police.