Up until few weeks ago, all rumours said ter Stegen might leave and he himself said on numerous occasions that he's not happy with the way things are going at the moment. Now all of a sudden, everything seems to have changed. I think it's pretty clear the staff told him his role in the upcoming season and he was happy with what they told him. Knowing him and common sense, he wouldn't be happy with only playing a handful of games for the 3rd season in a row. Therefore, I think he will play in the league next season.
Up until few weeks this team was dominant and everything was gr8 .in such circumstances players might get comfortable with what they say and the club threshold for such talking might be good too
Then we fucked up ,lost 11 consecutive points in Liga and lost CL .there was no room for shit talking .media was all over the team and 2 competitions at stake . No one can say talk about his place right now.
If MATS came under those circumstances and said he is aiming for no 1 spot next year the reaction won't be good for him .he has done the smart thing and kept the diplomatic answers
As for rumors ,well it is rumors .and till now there are many "If MATS left Barca are following GKs X,Y,Z situation"
So overall I won't read too much into it .I don't know what is the GK situation and honestly just like the last 2 seasons don't expect to know it b4 the start of the season