Since this is at Camp Nou, I am going to say that this ends in a draw. If this was at Bernabeu with the current state of Barca, then I would have Barca losing. I am going 2-2 with guessing goalscorers. Suarez, Umtiti, Ronaldo and Ramos. Barca has too sign at least two worthy replacements or world class teams like Real won't let Messi breathe as all of the attention will go to him now that Neymar has departed. You cannot afford to be shorthanded, especially against WC teams like Real, even if you have Messi.
Just found out Modric is banned so that is a huge plus for Barca.