The inFAMOUS: Second Son Paper Trail mission series has come to an end, and you didn’t get Celia’s paper powers, as previously announced by Sucker Punch. You did get four new jackets, one of which included Celia’s mask.
Though, there is a clear reason why there's no power between the rewards, and that reason hints to the very clear possibility of a sequel.
In the meanwhile, you can also see pictures of all the four Paper Trail reward jackets.
Beware that the part of the post that explains the possibility of a sequel includes spoilers, but you'll have to scroll all the way there, so if you just want to see the jackets, you're safe.