The 2026 reg updates are near finalized now.
The new cars are supposed to be much lower drag, in part due to an active aero system on both wings. This aero drag-reduction will be activated on most straights at defined zones. This is not DRS and has nothing to do with passing or following other cars. All cars will activate in the zones. This is being added to get around the clipping problem that was expected with needing to charge larger batteries. If the car is lower drag, they won’t need as much power to accel for the whole straight and won’t slow before the braking zone as they charge the battery. This is also being added to reduce fuel consumption, to make the cars more green.
In order to still have passing without DRS, the drivers will get a limited version of push-to-pass. Under normal conditions, the electric power will trail off at a certain car speed - around 300kph (I expect this will change per track). When following close enough to another car, the driver can stop the power from trailing off until 340kph - essentially they get a power boost at top speed.
And the final way the FIA hopes to improve passing is by once again addressing the dirty air problem. They have learned a lot with the current regs, including how the teams have made dirty air far worse than expected. Apparently there were talks about re-addressing dirty air for 2024 and 2025 with small measures, but they decided to hold off until the new 2026 regs.
I like the active aero, mostly from the "technical bits" and "fast cars" side. But I'm worried about how a field of low-drag cars will race. Low-drag suggests the slipstream will be less beneficial, which may further reduce natural passing.
I dislike the limitations on push-to-pass. Passing will continue to be prescriptive, maybe more so than the worst DRS zones, maybe not. I hope this is just the first step to doing a near unlimited push-to-pass.