Could absolutely be reaching here, but on any fast food snack packaging, you end up with the sodium content being displayed on the back of of the package. Likewise, chicken sandwiches and such are usually wrapped with some type of wax paper or wrapper.
This might indicate Salt is one of the furthest to the back (i.e. one of the Parade buildings), and meanwhile Chicken is wrapped up (in a Tent).
As for the other clue, I would be tempted to say the returning house has already been all but confirmed to be ST2, so it would follow suit to assume Hysteria (speculated to be ST2 because of the absolute tizzy it inspired in fans of the show) is in the Soundstage (possibly the same from last year) and Onyx is in the Parade building.