There are reasons both for and against this report. In favor of a hybrid 911 is the fact that Porsche is no stranger to hybrid vehicles. Porsche currently offers the second generation of Panamera hybrid; its last halo hypercar, the 918 Spyder, was a plug-in hybrid; and Porsche has been victorious at Le Mans with hybrids. The company even created a hybrid 911 race car way back in 2010. And Porsche has been getting serious about electric vehicles with the Mission E approaching production.
On the flip side, Porsche has been going back and forth on this idea since at least 2014. And just a few months before now, the project was seemingly dead when a Porsche representative officially said the company wasn't working on a hybrid 911.
All things considered, Porsche's steady move toward electrification seems to give favorable odds to a 911 hybrid coming in the near future. But all the waffling of the past means the car certainly isn't guaranteed.