Long-time lurker, first-time poster!
I’m a local with pretty extensive knowledge of the parks (especially Dreamworld) . I’m there a few times a week and a huge BB fan. Thought I’d finally throw a theory out there, along with some maps for anyone not too familiar with the layout.
The BB house backyard sits right on the fence line with WhiteWater World, in the spot that used to be an old guest entry from Dreamworld. These days it’s just an unused smoking area with a pathway running through it.
Now, inside WWW there’s an area called The Shell. It’s very similar in style to the old outdoor auditorium. In recent years it’s been used as a picnic/seating space, but this season it’s been completely closed off. Just last week it was cleared out and work started inside which makes me think it could be prepped as a potential eviction area, especially if they’re looking to bring back the live audience format.
On the map I’ve marked in pink a possible path: housemates could exit via the “backyard tunnel,” just like in earlier seasons, and then be transported straight down to The Shell with the crowd waiting.
Also the house is being built extremely close to an active attraction Tailspin — which isn’t even scheduled for maintenance during filming. From that ride, guests will literally be able to see straight into the backyard.