I think a lot depends on how negotiations with our players go after the holidays and WC are over. I think Higuain will go to Chelsea, so we'll get someone upfront, probably Morata.
looks like Sturaro is a goner and, seeing as Khedira doesn't want to move on, Marchisio might be going away too. all of Pjanic, Can, Khedira, Matuidi and Bentancur will want serious minutes next season, so I'd expect our 6th mid to be a project like Golovin or Praet. if Pjanič goes for big bucks, I think we go all in on SMS, not sure I want it to happen though.