Wolves have announced Joao Moutinho and Diego Costa will leave when their contracts at the end of the month.
Adama Traore's deal is also running down, though Wolves are offering him new terms.
Sporting director Matt Hobbs said: As the manager said in his press conferences recently, Adama is a player we'd like to keep and we're still talking to him.
"He's now out of contract, but it doesn't mean there's not an opportunity to still come to an agreement, so conversations will be ongoing.
"He's probably earned the right to understand what else is out there."