If, and it is an IF, he is doung an interview and releasing the contents to the public, for me it can only be a goodbye message.
He wouldn't do an interview at the end of the calendar year in the middle of the season, to say he will stay to the end of the season and see what happens. that is the default. And i doubt it would be to announce an extension, without knowing who has been elected to run the show. Besides if he does extend, i'd imagine the new president would want to control how that is announced and take some credit.
Timing such as this, if it is real, can for me only mean either, i'll see the season out but im off in the summer (could get unsustainable in the dressing room and pitch). Or, a 'please let me go in January'. i.e i wanted to leave in the summer, bartomeu said not withiut court, i respected the club, he is now gone, i ask the next president to respect my contract. or something like that.
I agree with whoever said though, if an interview Has taken place, i would expect leaks filtering through. unless the messi camp have learned from the last shitshow.
