The series last featured a 12-round, 24-race calendar back in 2012 - when it was still known as GP2 - before switching to 11 race meetings for the next five years.

Unlike the currently ongoing 2017 campaign, which featured a standalone round at Spain's Jerez, all rounds on next year's schedule will be held in support of Formula 1 grands prix.

The Spanish venue is the only track not returning to the calendar, its slot taken by the Russian GP venue Sochi Autodrom, which hosted the series in 2014-2015 but was absent for the past two years.

The return of F1's French GP has also seen Paul Ricard added to the F2 calendar. The round will kick off a run of three back-to-back race weekends with Austria's Red Bull Ring and Great Britain's Silverstone through June and July.

“I am pleased to announce that next year’s calendar will hold 12 events alongside Formula 1,” said series boss Bruno Michel.

“One of our mission statements is to prepare young drivers to the next step: F1.

“Having all of our race weekends take place with F1 will help our drivers to learn as many F1 tracks as possible, but also to prove their race crafts directly in front of the F1 paddock.

“The 2018 calendar includes two new venues: Le Castellet [Paul Ricard] and Sochi. It features one more event compared to this year, and is a good balance between racing on F1 circuits in Europe and overseas.”

After seven years with its current Dallara GP2/11 chassis, the series will introduce an all-new car for next year, with the Halo cockpit protection device added.

F2 2018 calendar

Dates Track April 6-8 Sakhir April 27-29 Baku May 11-13 Barcelona May 24-26 Monte Carlo June 22-24 Paul Ricard June 29 – July 1 Red Bull Ring July 6-8 Silverstone July 27-29 Hungaroring August 24-26 Spa-Francorchamps August 31 – September 2 Monza September 28-30 Sochi November 23-25 Yas Marina

GP3 returns to nine-round schedule

Start action Photo by: GP3 Series Media Service

Formula 1's other junior single-seater feeder series GP3 will likewise expand its calendar in 2018, adding two new events and ditching the standalone outing at Jerez.

GP3 had scaled down from nine rounds to eight for this year as it lost Hockenheim and Sepang from the calendar.

But it now returns to nine events and 18 races, with Paul Ricard and Sochi added to the calendar.

GP3's 2018 season is set to be the final campaign for the series in its current guise, as the FIA plans to replace it with a single-spec Formula 3 championship from 2019 onwards.

Said Michel: “We are delighted to race for the first time in Le Castellet and to return to Sochi once again, balancing the need to control costs and to provide a full season for our teams and drivers, and to create more entertainment for the fans.”

GP3 2018 calendar