http://www.autosport.com/news/report.php/id/67847 Renault to stay in F1 'for many years' The article mention Carlos Goshn's backing for the Renault F1 team. Maybe the commitment that was lacking 2 years ago and forced Alonso to seek new pastures at the time.
Piquet is useless, he is preventing them from being a top 5 team. It's good to see a team like Renault stay so that we don't get another backmarker.