"Whether the alternative would be to try to put another race on or we could have a double-header at one of the existing venues remains to be seen."
In addition, Red Bull team principal Christian Horner told BBC Sport: "I think they'll get it done. They're pretty committed and I think the race will happen.
F1 cars are scheduled to take to the track for practice on Friday 22 October, qualifying a day later and the race on Sunday 24 October.
The Korean circuit is the only new venue on the F1 calendar this season and has been designed by Hermann Tilke, the man behind the layouts of the new tracks in Malaysia, China, Bahrain and Abu Dhabi.
The next race is in Japan on 10 October, followed by Korea, Brazil (on 7 November) and finally Abu Dhabi (on 14 November).
Ferrari driver Fernando Alonso's victory in Singapore at the weekend means he now trails Red Bull's Mark Webber by 11 points in the drivers' championship, with Lewis Hamilton of McLaren nine points further adrift in third.
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