The line beyond Bull Street is due to open on May 22, completing a 1.4km extension from Snow Hill. The Snow Hill - Bull Street section opened on December 6.

Construction has begun on a 1.3km extension from Stephenson Street to Centenary Square, which will open in 2019, and funding has been earmarked to extend the line along Broad Street to Edgbaston by 2021. A 2.5km branch to Digbeth, which would serve the planned High Speed 2 station at Curzon Street, is expected to open by 2023.