[5] In anticipation of increased ridership for Super Bowl XLVIII in February 2014 NJT extended platforms at Secaucus Junction by 120 ft (37 m) to accommodate multi-level 10-car train sets which can handle about 1,400 to 1,800 passengers per trip, moving about 14,000 or 15,000 people an hour.

At its eastern terminus Hoboken Terminal connections to PATH trains, Hudson Bergen Light Rail, New York Waterway ferries and local buses are available.

They travel through southwestern Connecticut and Westchester County, Hell Gate Bridge, cross Manhattan via New York Penn (thus avoiding the normally required transfer from Grand Central Terminal,) and continue through the North River Tunnels as regular NJT trains to Secaucus Junction.

[12] Despite officials indicating the line would begin daily service when the American Dream complex opened, which occurred in 2019, the Meadowlands Rail Line does not currently operate daily, with NJ Transit delaying the expansion of service until "the rail system is resilient enough that doing so won’t adversely affect NJ Transit commuters".

[33] In anticipation of overflow crowds attending BTS performances in May 2019, NJ Transit advised departing concert-goers to find alternative transportation and planned additional bus service, saying that the line's capacity of 8,000 person per hour would be exceeded.

[34] On September 14, 2022, NJ Transit entered into a naming rights agreement with BetMGM, a sports betting company owned by MGM Resorts International, to rename the line for $3 million over the next 3 years.

[35][36] In 2021, NJ Transit authorized studies for alternative options between the Meadowlands Sports Complex and Secaucus Junction including a bus "transitway".

[38][39][40] An initial version designed by HNTB and largely using existing infrastructure (mainly the New Jersey Turnpike) is planned to go into service for the 2026 FIFA World Cup.

[41][42][43] In January 2022, the New Jersey Department of Transportation announced the replacement of the eastbound Route 3 Bridge over the Hackensack River, which would incorporate provisions for a potential future expansion of the Hudson-Bergen Light Rail, ostensibly from Secaucus Junction.