The East Coast rail line runs from London to Scotland's major cities, including Edinburgh, Aberdeen and Glasgow.
Over three years ago the line had to be nationalised because operator National Express revealed it couldn't afford to pay the franchise. The company was commited to a £1.4 billion contract.
No formal bidders have yet been confirmed, but it could reignite competition between Virgin Trains and FirstGroup who went head-to-head to run the West Coast line.
More top news
A father has been found guilty of murdering his three-month-old son by hurling him "vigorously" against a hard surface in a fit of temper.
The self-styled revolutionary has spent the last 23 years in a high security prison for a string of murders and attacks.
Cancer surgeon accused of conducting series of 'completely unnecessary' operations denies giving cancer-phobic GP an unneeded mastectomy.