A total of 7,000 tonnes of spoil are expected to be removed during the work. A full service using only the new trains and running to an even 30-minute frequency is due to begin in May 2021. Changes will be made to the track layout and signalling system, principally to introduce a new passing loop at Brading station. As the new Class 484 trains will sit higher above rail level than the Class 483s they will replace, the track through most stations was expected to be lowered in order to prevent a large vertical difference between the train floor height and the platform height. At stations where this is not possible, platform height is instead due to be raised. As of the end of January 2021, the operator confirmed that work was largely complete to raise the platforms at Lake and Smallbrook Junction stations, while the platforms at Sandown are due to receive the same treatment. SWR also confirmed that the track would be lowered at Brading and Shanklin stations.