Charles Leclerc and Fernando Alonso joined Jenson Button, Max Verstappen and more in signing up for the virtual 24 Hours of Le Mans.
After finishing bottom of the standings in 2019 and posting a financial loss, Williams are seeking new investment.
It remains to be seen where Sebastian Vettel will end up in 2021 but Daniel Ricciardo feels the 32-year-old has the passion to stay in F1.
Carlos Sainz was chosen to replace Sebastian Vettel at Ferrari, but Daniel Ricciardo confirmed he spoke to the Scuderia about the seat.
The Formula One schedule for this year suffered another delay as the Dutch Grand Prix was withdrawn from the 2020 calendar.
Amid the coronavirus pandemic, the FIA has approved Formula One's cost-cutting proposals.
The virtual 24 Hours of Le Mans will see Red Bull's Max Verstappen and Lando Norris of McLaren join forces for Team Redline.
McLaren chief Zak Brown would love to see Daniel Ricciardo and Lando Norris compete in the Bathurst 1000.
Carlos Sainz Jr. will join Ferrari next year and Charles Leclerc praised the 25-year-old.
There was no catching George Russell as he won by almost 40 seconds, while Pierre-Emerick Aubameyang finished back in 16th.