F1 is poised to confirm Zandvoort's place on the 2020 calendar.
We have learned that F1 chief executive Chase Carey is travelling to the Netherlands on Tuesday to announce the return of the Dutch grand prix.
Reports suggest Zandvoort will replace Barcelona.
"Hopefully they can agree on something," Carlos Sainz, referring to the endangered Spanish grand prix, said in Barcelona.
"Maybe not next year because it's too late, but hopefully they can agree on something for the future."
Carey said this week that the calendar is remaining static at 21 races for 2020, meaning that with Vietnam and Zandvoort's arrival, at least two races will be scrapped.
"The maths means we will not be able to renew all our current races," he said.
"We believe it is important for our fans and the growth of our sport and business that we both add exciting new locations and manage a limited level of churn."