Currently, passengers wishing to go back in time to the former luxury of the train journey get a British Pullman luxury train from London's Victoria Station to Folkestone. They then transfer to coaches and cross under the channel and meet up with a train in Calais.
Belmond, which runs the Venice-Simplon Orient Express say the new biometric passport checks and extra red tape because of Brexit will make the operation impossible. A spokesperson said "We’re adjusting operations in 2024 ahead of enhanced passport and border controls. We want to avoid any risk of travel disruption for our guests – delays and missing train connections – and provide the highest level of service, as seamless and relaxed as possible."
According to Belmond people travelling to the EU from the UK that don't have EU residency will be required to provide fingerprints as well as facial recognition data when crossing the border, instead of just having passports checked.