Is that why he's been playing in the centres recently after playing his whole career to date on the wing?
No, that's because Brett Morris is going to be played on the wing, and hoppa was supposed to go to the centres to accomodate Morris. So to get both in the team, it means that Rona needed to be moved to centres, which he is more than capable of playing.
Really it's our best team on the park, and if Rona decides to stay, it will be because he was told he can remain at centre if he likes it and the extra pay is enough. Though I don't doubt that Rona would probably play for Australia if he went to the force, which would mean that we just couldn't compete with those financial top ups for a back.