Whether Petrov stays at Renault will probably depend on one thing only: Roubles. Then again, if Renault had two competitive drivers they’d be ahead of Mercedes and perhaps even challenging Ferrari, so arguably they are losing more money than they are gaining by running Petrov.
Surely Glock won’t stay at Virgin beyond this season? His career is going absolutely no where this season- I know he’s not the quite top drawer, but he belongs in a much better team than Virgin. The problem for him is that there aren’t many vacancies. His best options are probably to move to Force India, Renault or Sauber.
(sorry this has gone a bit off topic! For the record I don’t think there’s been a standout rookie this season, they’ve all been too inconsistent)