
Fifa president Sepp Blatter has delayed imposing his 'six plus five' plan for at least the next 12 months.
Speaking at Fifa's congress in the Bahamas, Blatter said: "They (EU experts) are no longer saying it would be illegal, they are saying we can ask ourselves the question whether it would be legal or illegal - that's a huge step forward."
The Fifa president also said that the Treaty of Lisbon, if ratified, could give sport a special status that could allow players to be exempt from labour laws.
"If we get that by end of the year - then next year we will be able to announce that we were on the right path and can begin implementing it," he said, adding that laws could also be challenged.
"If there is the political will a law can be amended, a law can be interpreted, all laws can be changed or amended," Blatter added.
Blatter's proposals would have a significant impact on the Premier League, with FA Cup winners Chelsea having just three Englishmen in their starting XI against Everton.
The global football supremo believes some countries are looking to reduce the number of foreign players in their sides and he singled out Spain for praise.
He said: "Something is happening. If you look at Spain they have the Champions League winners and are reigning European champions.
"Six plus five doesn't exist as a problem in Spain - that shows you can play with home-grown players and some foreigners."