1. After Shek Kip Mei Station (interchange with MTR Kwun Tong Line, it will go west and have a stop at Kam Sheung Road Station (interchange station with West Rail), then it will follow the Northern Link and go either to Lok Ma Chau or to Lo Wu.
2. After Shek Kip Mei Station (interchange station with the MTR Kwun Tong Line), it will go east and have a stop at a new constructed station (Fanling South happens only if regional express line follows this option, interchange with East Rail), then it will go either to Lo Wu or to a new Boundary Crossing.
The Chinese government recommended that if the Shanghai Maglev (Magnetic Levitation Train System) Line is successful, then the Regional Express Line might use the Maglev system for a planned connection maglev line with Shanghai (about 1200 - 1500 KM).
The Hong Kong government also investigated a possible extension from Hung Hom Station to Central Station was possible for the future.
Completion in 2013-2016 Will be bidded by KCRC and MTRC.
1. Via West Rail at around Tsuen Wan West Station and change into Northern Link at Kam Sheung Road Station.
2. Via East Rail at around Tai Wai Sation and joins to Lo Wu and Lok Ma Chau via Lok Ma Chau Extension.
There were sayings that this railway line might not be made because of it's high price and it might not be very useful.