Scrolled my X this morning and saw some news said that Ronaldo is staying much longer in Al Nassr. The new deal is still underway, and expect to be finalized in the coming days. Romano is also confirming it on his Ronaldo's tweet at 29 may. I think he won't leave just to play for CWC, though it's a big competition for sure.
At this period that's how news flies up and down from all angles, every media outlet brings forth news from everywhere it gets to point one becomes confused as to what to believe. Another news still carried a news that Ronaldo will play in the Club World Cup, Al Nassr didn't meet the criteria to be invited to the CWC, now the thing is, for Ronaldo to play in the CWC when his current team isn't in it, it only means he will have to move to another club. Rumours everywhere, we ain't sure of anyone yet for now.