On 31 January 2020 at midnight, Brexit will be a fact, after which a transition period starts in which the European Union and the United Kingdom will negotiate a new treaty. What does that mean for you as a traveller?
For the time being, nothing will change for travellers to and from the United Kingdom. During the period of the negotiations, you can travel as you normally would, without any additional formalities or checks. Citizens of the United Kingdom will still be able to use the e-gates for EU-citizens. The negotiations will run until the end of 2020.