My friend emailed FBR about it...
You will receive all the songs that you purchased, If you purchased the box set with the B-Sides you will get those digitally on April 9th
Sent: Friday, March 29, 2013 11:46 AM
To: FBR Webstore
Subject: Paramore Deluxe Box Set and Vinyl Shipping Update
I was wondering if we will also be sent a digital version of the two b-sides along with the album?