Good news: Eurostar's direct Amsterdam/Rotterdam - London connections will return in February, as they plan to have finished building the new coffee corner and shops at Amsterdam station, saves 32 return flights per day https://nos.nl/artikel/2542726-vanaf-februari-weer-directe-trein-tussen-amsterdam-en-londen (Dutch)
Vanaf februari weer directe trein tussen Amsterdam en Londen

Uitstappen in Brussel voor de paspoortcontrole is dan niet meer nodig, omdat de nieuwe terminal op Amsterdam Centraal klaar is.

@hdv It's nice, but prices are unbelievably expensive compared to flights. I don't understand how trains are 2x-3x more expensive than planes. Maybe it's just because of the lack of competition.
@murat I think scale is part of it, plus there is no VAT on flight tickets and other tax benefits for airlines and airports