I don't know how well they'd mix with the animals down there like the Giraffe and Rhino. They're not an African species too so would really ruin the theming of the area.could envision Werribee in the (more distant) future could also upgrade their lower Savannah fencing and allow bachelor elephants to roam there, or have even a fenced path across the top of the zoo from their new home all the way to the Lower-Savannah, if such new fencing were installed.
The current elephant complex should have plenty of space to accommodate bachelor males long term. In saying that, it would be nice to view the elephants on safari, somehow or some way.