As you know, there were issues with the MRH-90, So the naval ASW NFI-90 wasn't purchased. The RAN went with
Romeos for the ASW role.
I would expect the existing MRH-90 to continue their current role in the RAN. I think we are keeping the fleet of MRH-90, for now.
https://www.navy.gov.au/aircraft/mrh-90-taipan