The French Grand Prix became the latest MotoGP race to be postponed due to coronavirus.
Andrea Iannone has been suspended from MotoGP until June 2021 after failing a drugs test last year.
Alex Marquez took an early win over his new MotoGP rivals by powering to victory in Sunday's virtual Mugello grand prix race.
After retiring late last year, Jorge Lorenzo said he was sure there would be offers if he decided to return.
Jerez will not stage the season-opening race in May after the Spanish Grand Prix was postponed due to coronavirus.
MotoGP legend Valentino Rossi has friends in areas of Italy that have been devastated by the coronavirus.
The 2020 MotoGP season will now begin in May after the Argentinian Grand Prix was pushed back to November.
Amid the ongoing spread of coronavirus, the 2020 Grand Prix of the Americas, scheduled for April 5, has been postponed.
Jorge Lorenzo retired from racing in November, but the former MotoGP champion will be back on the grid for the Catalan Grand Prix.
Spectators may miss out on attending MotoGP races this season to make sure events go ahead as scheduled during 2020.