Yes IIRC they were only ever supposed to be a "stop gap" for 10 years at the longest, and some of them have now been in service for 3 years.I think the whole reason the project was based on was taking revenue away from the 800 operators on a very profitable route for commuters and tourists alike.
2030 is the end for them isn’t it? The carbon neutral railway target.
800’s will be purchased I reckon but it is the variant that needs to be worked out. Tri-mode might need wires to Perth for example.
I believe 2035 is the carbon neutral target where everything will either be wired or operated with battery/hydrogen trains