I am reading that Juventus and Vlahovic are working on a deal to get him to be a free agent, even without being sold. They tried to sell him, but Vlahovic couldn't find a team, not sure why because he is good enough to find a team at least, we know that much. However, Juventus wants to be done with this saga, so they are basically telling Vlahovic, terminate the contract, mutually, without Juventus paying. That way, Vlahovic could find himself a team as a free agent, instead of staying at bench all season long.
I think at this point, Vlahovic postponed it, only because he is telling his agent to go find if any team would accept him if he is free agent, if there are any interest then he could definitely go free agent and move to another team.
Recently Vlahovic has been refuse contract extension from Juventus it because he want his salary to increase but Juventus don't want to granted his demand because Juventus feel Vlahovic salary is too high this situation make Juventus to thinking to terminate his contract especially Vlahovic contract will be ended on next year but if this rumour is true i think it's not a big deal for Vlahovic to look for new clubs because AC Milan and Manchester United are willing to use his service