Those looking for more significant power gains should keep their eyes on the hybrid variants that also currently under development. Early reports are saying we could see horsepower outputs around 700.
A more significant change comes with the introduction of turbocharged engines across the whole 911 range. You can expect the current 370hp 911 Carrera and 420hp 911 Carrera S’ 3.0-litre engines to be boosted by around 15hp, while the more-powerful models, such as the 911 Turbo S, will get power gains of closer to 50hp.
More hard-core GT3 models will likely come with turbocharged six-cylinder engines for the first time, too. Instead of a naturally-aspirated 4.0-litre unit, they’re expected to use a tweaked version of the 3.8-litre twin-turbo engine from the outgoing Turbo and Turbo S models producing significantly more than 500hp. - CarWow
that's essentially the progression that always follows from generation to generation and gets more reinforced as you see how rivals are stepping their game up.If that ends up being true, then the hybrid models are going to end up delivering the same level of performance as the current GT2 RS. That's already a $300k car...
911's are driver cars, 0-60 times don't matter all that much once you compete in this category. Yes its necessary but there are more important things to look at.Such as? We know that they haven't revised much with the 992, so it's going to have the same driving mechanics that we've come to expect from Porsche.