The Belgian starlet has a contract which is expiring at the end of the season and even though there is a progression with the new contract, Barcelona are now interested in taking him on a free.
Januzaj has made it clear that at times during his Manchester United career he has felt unappreciated, so a move could well be on the cards but whether Barcelona would be a suitable destination is another story.
If he was to leave Old Trafford, he wouldn't be the first promising player to leave the club with Paul Pogba and Ravel Morrison both leaving and making an impression elsewhere.