The GP3 Series and FIA European Formula 3 could merge into one series for 2019.
With the GP2 Series having been rebranded as the FIA Formula 2 Championship, GP3 now finds itself in limbo.
Its place on the Formula One support card seems out of place and in doubt, with it also in direct competition with the DTM supporting F3 series.
Both categories are struggling to match the grid numbers that they have seen in past seasons, with the added potential of the loss of another team from GP3.
Koiranen GP are yet to confirm any drivers to its squad and has not yet stated whether or not they will remain in the series.
GP3’s contract is understood to run until the end of 2018 giving the FIA Single Seater Commission time to discuss a rational way to rejuvenate the third tier of the single seater ladder.
Stefano Domenicali, the Single Seater Commission President, could not comment on the speculation but told Motorsport.com: “With this step [GP2 becoming F2] the FIA racing ladder is now complete and we will be working with even more energy to strengthen the F3 category, which is the ideal step just before F2.
“Also, we keep on studying how to implement an intermediate step between Formula 4 and F3 to help young talents to progress in their career at a more international level and still in an affordable category.”