I wonder if they intend to increase the daily capacity. A bigger Barn and a new, small but open air stage means that they can theoretically expand the capacity. If not, signing more bands due to the extra stage might decrease the funds dedicated to the undercard (same amount of money gain from tickets and alcohol goes to more bands, even if they're small). Otherwise why do so? I dont remember being in a stacked Barn in 2016 (tbf that edition didnt sell out) and in 2015 the only acts that filled the Barn were Elbow (no one played on the mainstage opposite to them because FF full set was replaced by 1-hour of FNM), alt-j (opposite to no one on mainstage) and maybe Damien Rice. I didnt go last year so I dont know but in my opinion last year the Barn was pretty weak.