Amazon.de is listing a book for release next year called A Knight of the Seven Kingdoms, by George R.R. Martin.
This is almost certainly a new (working?) title for the first Dunk and Egg compilation volume, which will collect The Hedge Knight, The Sworn Sword and The Mystery Knight in one book. Originally the fourth story, The She-Wolves, was also part of the compilation but GRRM confirmed to fans at the recent ConQuest convention that he is holding it back until after The Winds of Winter is completed. This indicates either that the compilation will only include those three stories, or it will also be held back until after Winds and the date has not been updated on Amazon to reflect that.
Meanwhile, She-Wolves' replacement story, The Princess and the Queen (a story set at the outbreak of the Dance of Dragons), will appear in Dangerous Women in December.