The Arrow’s won’t be phased out all at once, the replacement would be more gradual. At one point you’ll see NJT using both the Arrow’s and the Multilevel III’s at the same time, similar to how the NYC MTA’s (7) line used to run R62A’s alongside the R188’s.
@@cryorig_transit05None of the cars with an operator’s cab are actually powered, only some of the trailer cars are powered. This means that those are still just cab cars. I know it sounds odd but it’s true.