The rail line through downtown is a nuisance, no question, but, it would cost hundreds of millions of dollars to relocate the line to the north of the city. This is very difficult to justify, and, there would still have to be rail access of some form into the various industrial parks around the area. There would still have to be a bunch of spur lines around the metro area allowing such access.
The CNR mainline through Moncton has one major benefit - the maintenance of a downtown VIA station in the city. Right now, with three passenger trains per week, the VIA station borders on irrelevance, but, I don't think it will be this way forever. VIA is replacing ALL of their rolling stock. I think the
Ocean may eventually return to a daily schedule. In addition, I also honestly believe that we will eventually see the return of intercity rail in the Maritime region, especially with the eventual demise of internal combustion automobiles. While EVs will take over, I also expect a resurgence in passenger rail. In particular, if we don't have 2-3x daily trains on a SJ-Moncton-Truro-Halifax routing in 20 years time I will be shocked. There could also be a once daily north shore routing out of Moncton too, counterbalancing the daily
Ocean service on the same route, allowing for same day return service.
So, I can foresee a time when there may be 8-10 passenger trains a day calling at the downtown VIA station, perhaps even more if there were ever to be local commuter rail to Sackville, Shediac and Petitcodiac/Salisbury. The downtown location is perfect, right next to the Avenir Centre, with nearby hotels and restaurants, and within walking distance of the downtown core. Some Canadian cities have lost their downtown stations (especially on the Prairies). Once gone, it is impossible to get this back. Moncton is fortunate in this regard.
Moncton is also fortunate in that the VIA station here allows for double duty as a Maritime Bus depot, and, as such, allows for interconnectivity that some cities can only dream of.
And, as some have pointed out, if Moncton were ever to develop a metropolitan LRT system, (in 50 years or so), there might be options to make one of the LRT stops at the VIA station. Such a stop would be one of the most important on the system, serving the VIA station itself, the Avenir Centre, and the downtown west end in general.
The VIA station therefore could be the intermodal focus for heavy passenger rail, local commuter rail, metropolitan LRT
and intercity bus. Not many cities have such a multimodal downtown terminal. I know there are orders of magnitude of difference in the comparison, but, it sort of reminds me of Union Station in Toronto.........