No matter the outcome of Monday's Court of Appeal hearing, Renault has scheduled an announcement regarding its driver lineup for this week.
It is understood that, if the Court overturns the French team's suspension from the European grand prix, Romain Grosjean will be confirmed on Tuesday as sacked Nelson Piquet's immediate replacement.
The Court of Appeal meets to consider the team ban in Paris on Monday morning, but the actual verdict will not be known until late Tuesday.
If the Hungarian GP stewards' decision is upheld in full, it is believed the Enstone based team is prepared to wait until Friday to announce officially that Grosjean, 23, will replace Brazilian Piquet beginning at Spa-Francorchamps next weekend.
Britain's Guardian newspaper said French-Swiss Grosjean recently had a seat fitting for Piquet's car number 8 at the Renault factory.
