Well talks of selling are a bit exaggerated, but anyone who's not at least half a bit concerned about Iniesta is really naive or exceedingly optimistic. He's always had to deal with injuries and he's getting older, plus he had an average season last year and has not had a good one this year, even before getting injured.
Safe to say, right now at least, the Iniesta we saw vs PSG is not the Iniesta we can get when he's fully healthy and has some matches under his belt for rhythm, but his future should be very much concerning for us fans and for the club. I also think his game will not age as well as Xavi's.