Formula One's commercial managing director Sean Bratches has hinted at a possible move away from Silverstone.
Last year, Silverstone bosses activated a break clause in the race's contract - meaning that the 2019 race will be its last in the current deal.
There have been no leaks of negotiations over a new contract, either.
F1's owners, Liberty Media have insisted that they want to keep historic and iconic tracks, like Silverstone. However, with the speculation over the Miami Grand Prix and today's announcement regarding a race in Vietnam, something has to give. And a track has to go.
Bratches was questioned ahead of the Brazil Grand Prix about the potential move to a street track for historic races like Britain or Italy.
"We're a 68-year-old entity and the nature of grand prix racing is that it is dynamic," Bratches replied to Autosport. "Silverstone was the first grand prix, but we haven't raced at Silverstone all those 68 years.
"The race has been held at Brands Hatch and other venues. Nothing is immutable in this sport in terms of where we race. We do value certain races highly and do what we can to preserve racing there, but we are a business.
"We are a public company and we have a lot of stakeholders and shareholders and we're trying to marry what's best for fans with running a successful business."