https://www.railwaygazette.com/news/...ee-brands.html
A new electric service between London St Pancras, Luton Airport Parkway, Bedford, Kettering, Wellingborough and Corby will be branded EMR Electrics. This is to be operated using refurbished Siemens Class 360 EMUs, and will have its own website, ‘easier’ ticketing and a dedicated platform at St Pancras. EMR said that once various developments had been completed, passengers would be able to reach the terminal at Luton Airport in ‘a little under half an hour’ from central London.
Luton's Express trains will come 2nd hand from from here.
https://www.angeltrains.co.uk/Produc...nger-Trains/19
As Thameslink serves many more stations including Crossrail at Farringdon and London Bridge they will still be the company of choice for most passengers.