Why would he leave? He is about to play in his favourite position. Very very unlikely that he leaves - he stayed during times with less playing-time possibilities than now, and he became a legend last season. I'd say this is to sell papers.
From Roberto's position, he will play a decent amount of minutes ONLY if we will able to field 13 players in every match.
4-5-3 with Busi and 4 central midfielders.
Iniesta will play.
Rakitic will probably play.
Paulinho will play a lot since we bought him as a savior.
Gomes will play, since we didn't want to sell him.
Then you have Rafinha and Roberto, around 5th-6th pick.
Not to mention Arda, Samper, Alena.
Or Denis as a midfielder if we'll buy Dembele and Coutinho for a Lw position and Deulofeu as a sub for a Lw and a Rw.
We have so many midfielders, that probably 4-5 guys will start riots during a season.
Bad planning. Such a bad planning.
Again, imagine if we'll also go for Seri in the end.
Which would be good for our team, but bad for other 11 midfielders.