Spectators may miss out on attending MotoGP races this season to make sure events go ahead as scheduled during 2020.
MotoGP's 2020 season is now not expected to start until April after the coronavirus affected the first two rounds.
The season-opening Qatar MotoGP is the latest sporting event to be called off due to the coronavirus outbreak.
Repsol Honda handed Alex Marquez a one-year deal for the 2020 season, and brother Marc will have no say on an extension.
Marc Marquez exceeded expectations on his comeback, although the Spaniard's first run since shoulder surgery was not entirely satisfactory.
Andrea Iannone will not take part in MotoGP's pre-season testing in Sepang after it was confirmed he remains provisionally suspended.
Jorge Lorenzo won three premier class titles during his nine years with Monster Energy Yamaha and will return as their test rider in 2020.
It has been a busy day for Yamaha, who have allowed Valentino Rossi more time to decide his MotoGP future beyond 2020.
Monster Energy Yamaha have tied Maverick Vinales down for another two seasons after speculation over his future.
Marc Marquez has had an operation on his right shoulder following a crash during testing in Jerez.