From a quick look at this document:

https://bigbuild.vic.gov.au/__data/assets/pdf_file/0015/721140/MT-AZ-Domain-Development-Plan-Minor-amendment-October-2022.pdf

p45 says:

Additionally, the current design accommodates the reinstatement of the
No.58 Domain Road tram service, which has been diverted to Toorak Road
during construction. However, this is subject to ongoing consultation with
Department of Transport as detailed design progresses.

On Sun, 4 Dec 2022 at 14:22, Mal Rowe mal.rowe@...> wrote:

> One possible occasion for use of the Domain Rd tramway would be when the

> GP is on and trams branching off St Kilda Rd terminate before entering

> StK Rd - the crossover in Domain Rd is fairly close to the corner, while

> the Toorak Rd West crossover is a bit further away at Millswyn St.

>

>