The rumours in the French Media was already existing some weeks that Seb. Loeb didn't want to end his drivers career without knowing what he could in F1.
Basically he doesn't want to end like Rossi who has now regrets he did not try F1.
The biggest rumours are that he wants to participate in parallel WRC and F1. But is not really feasible.
Currently the only real possibility would be a Red Bull promotional stunt where he could drive an F1 car in Abou Dhabi. Most likely for Torro Rosso.
Those rumours have now been confirmed as Citroen Management officially gave Loeb Permission to go to F1 for Abou Dhabi. Now he only needs to find a free seat.
source http://www.lequipe.fr/Formule1/breves20 ... -loeb.html
http://en.f1-live.com/f1/en/headlines/n ... 2407.shtml