The super action vehicle it has become should enable it to survive the loss of Paul. Family is still a big factor in the series, and Paul was a big part of that. Fast 2 aside, there was always a grounded feeling to the movies Paul was in. But the new characters are blending well.
It's still bittersweet without him. That dialogue in Fast and Furious about not being there for his kids still gets me.
All that being said, I still don't see how Shaw could work with any of them aside from Hobbs, given that he freakin' killed Han.