Network Rail's completed signalling work on new track near Peterborough that will divert freight trains under the East Coast Main Line.
New open access operator Lumo will offer direct, fully electric rail services between London and Edinburgh starting at £14.90 for a single.
This month Network Rail will connect a new tunnel north of Peterborough to the existing railway as part of the East Coast Upgrade project.
Further weekend closures of the Northern City Line have been confirmed to enable work on the East Coast Digital Programme.
No trains ran to or from London King’s Cross this past weekend as work continued on Network Rail’s East Coast Upgrade.
Network Rail to begin works at London King's Cross station at the end of February as part of the 1.2 billion GBP East Coast Main Line.
During the Christmas closure of London King's Cross, Network Rail engineers lifted all four tracks going into the station to divert a sewer.