The Pope accepts the Nicene Creed without the filioque, so it no longer appears to be an issue.
More important are the Papal Powers: Papal supremacy and Papal infallibility.
As long as the Pope holds onto those Papal Powers, we cannot have unity or intercommunion.
Here is a book with Catholic and Orthodox discussions on the place of the Petrine ministry:
The Petrine Ministry. Catholics and Orthodox in Dialogue. Academic symposium
held at the Pontifical Council for Promoting Christian Unity.
Edited by Walter Kasper.(New York and Mahwah,New Jersey: The Newman
Press, Paulist Press. 2006. Pp. vi, 257. $24.95 paperback.)