Just walked home, past the station, and am sorry to say it's not looking too positive for a train service in the morning.
There are three pumping tankers and a load of heavy duty pipes on Dartmouth Road and the workman at the underpass I spoke to had a pretty grim look on his face when he said it wasn't going to be a quick fix. Several workman were also looking closely at the wall of the underpass and they're currently building some scaffolding by WH Smith.
Looks like they need to divert the sewer in order to rebuild it...so spare a thought; there's always a worse job than yours.
Fingers crossed.