i doubt he would make his decision based on one CL season after we lost 3 key players in the summer. especially not when we were close to eliminating a top 3 team and showed that we are capable of competing with the best in those 2 games. if his intention was to leave, it would be more logical to do so after one circle has ended, so last summer. he instead gave us a chance to build a new CL contender squad (which, if we go by the Bayern games, we are on the right path to do) and then leave us after one season? sorry, i cant see why he would do so.
also, if we go by his interviews, he has deep respect for Juve. he also has the ambition to be the best player in the world one day. he didnt leave when he had the chance last summer, yet instead he took the nr 10 and started a new circle here. those are obvious signs to me that he wants to win the CL and Balon dor with Juve and justify the burden he got by taking the 10 shirt. if he leaves now id be very disappointed as he would be a quitter in my eyes, and would ruin the image he created of himself. if we dont win the CL by the time hes 27-29 id understand him wanting to leave, but not after one season of failure. hes not that kind of guy, or atleast thats not how he presented himself in the past 4 years