Formula 1 boss Bernie Ecclestone is considering moving the inaugural Indian Grand Prix to the end of the season to make room for Bahrain.
The race in the Gulf state was set to open the season but was postponed following civil unrest.
One option is to move India from its 30 October date to 4 December, a week after the current final race in Brazil, and put Bahrain on India's date.
"We are having a look at it. Everything is possible," Ecclestone said.
"I'm not sure at the moment what I'm going to do. Everything's up in the air.
"I haven't decided. We'll see if we have to go to Bahrain."
F1's governing body the FIA is to rule on whether Bahrain should return to the calendar on 3 June.
The Gulf state announced recently that it would lift the martial law that is currently imposed on 1 June.
Authorities insist the situation in the country is returning to normal following the unrest, which was part of the uprisings across the Middle East in the so-called Arab Spring.
At least 30 people have died since Bahrain's Shia majority took to the streets in February in protest.
More than 20 activists are charged with attempting to oust the Sunni monarchy.
Last month, the court sentenced four Shia protesters to death and three others to jail for life for killing two policemen by running them over with cars during the protests.
The authorities in Manama have come under strong criticism from human rights groups for their crackdown on the Shia-led protests, who have been demanding an end to the Sunni monarchy.
The Bahraini authorities deny any human rights abuses