Porsche and Audi will reportedly have a seat at the table of an F1 engine manufacturers meeting that is scheduled to take place at the Red Bull Ring next Saturday.
Formula 1's stakeholders and the FIA have yet to finalise the sport's engine plans for its next regulation cycle that is set to begin in 2025.
Grand Prix racing's future power unit isn't expected to be a big departure from its current format, although there are plans to lower the level of sophistication of the units as well as their costs while retaining, or indeed increasing, the PU's hybrid component.
It is also expected that the engine of the future will be fed with fully sustainable fuels, as the overall package aims to satisfy the sport's sustainability and carbon neutral objectives as well as safeguard a semblance of relevancy with the automobile industry's road cars.
According to Motorsport Week, next Saturday's meeting will bring together next year's four F1 manufacturers that will represented by Daimler boss Ola Källenius, Ferrari's John Elkann, Renault CEO Luca di Meo and Red Bull's Dietrich Mateschitz.
Formula One chief executive Stefano Domenicali, motorsport boss Ross Brawn and FIA president Jean Todt will also attend the meeting.
But Porsche CEO Oliver Blume and Audi's Markus Duesman are reportedly also expected to have a seat at the table although its uncertain whether they will take part in the discussions or simply attend the talks as observers, which both companies have done in the past.
Periodically, there have been rumors of Porsche and Audi's involvement in F1, especially when both companies scaled back their racing activities in the wake of the Volkswagen Group's Dieselgate scandal.
However, Porsche and Audi have since announced plans to return with works teams to the World Endurance Championship, while Porsche's partnership with Penske will extend to the IMSA series in the U.S.