Three dates are being discussed for the quarter-final between Arsenal and Palace, which are December 16, December 23 or Christmas Eve.
It is understood that Arsenal’s preference would be for the match at the Emirates Stadium to take place on December 16.
However, that would mean Palace playing three games in the span of just five days because they are also facing Manchester City in the Premier League on December 14.
Playing on December 23 would mean both Arsenal and Palace having just two days to prepare for the quarter-final.
Arsenal are away to Everton on December 21, while Palace have a trip to Leeds that day.
Christmas Eve is the only available date that would give both sides three days of rest, but it would also be problematic due to policing and local transport.
“Every decision that we make in terms of a fixture has to be guided on two main things I think: player welfare and then supporters, that’s it,” said Arsenal manager Mikel Arteta.
“And the rest has to come very, very far away from that and we should never forget that principle. That’s the only thing I will say.”