Formula 1 may bid farewell to the current and controversial 'hybrid' engine era starting in 2030.

F1 CEO Stefano Domenicali anticipates a "closer battle" on the track at Imola this weekend, along with a flurry of off-track activities, rumours, and discussions.

La Gazzetta dello Sport reports that negotiations for the new Concorde Agreement are underway, with the crucial document binding F1, the FIA, and the teams set to expire next year.

"The issue of Red Bull owning two teams has emerged," Domenicali acknowledged.

"But they will be able to continue like this due to the contribution that the brand has made to the history of Formula 1."

He continued: "We also confirm the maximum limit of 25 grands prix per season, and we intend to expand the new sprint race format to more events, because it makes the race weekends more exciting."

The current regulations cycle will end with the 2025 season, paving the way for significant changes in chassis, aerodynamic, and engine rules for 2026.

"In the last meeting of the F1 Commission, there was agreement on the main points and it was decided that the rules will be published on June 1," Domenicali revealed.

"All of the teams are already working on the 2026 cars," he stated. "The aerodynamic package will see some important new features."

"The sore point is the high weight of the single seaters, and that's a problem that remains," Domenicali explained.

"And also from my perspective, I would like the engines to produce a nicer and a louder sound, as the enthusiasts are asking for," said the Italian.

"If sustainable fuels lead us to zero emissions, then we can even think about abandoning hybrid power units in 2030," Domenicali teased.