Lots of speculation in the press and half of it rubbish.
Toto is in and Norbert is gone. Facts.
As for Ross, I 'expect' him to stay on. It isn't cast in stone that Toto arriving is his departure. Pat also has done a superb job despite what the fans think. At Honda he had his hands tied until the last year but then produced a great car. I can't see why Mercedes wouldn't incorporate Paddy and Pat to spearhead the direction.
Looks like a very strong team is developing but only if Mercedes can get all departments singing off the same hymn sheet.