A quote from Jason Reitman at FirstShowing.net
This is the next chapter in the original franchise. It is not a reboot. What happened in the ‘80s happened in the ‘80s, and this is set in the present day.
I’m not sure how they’re going to do this without Harold Ramis. And Bill Murray was staunchly against doing another film (going so far as to shred a draft script that was sent to him by Dan Aykroyd).
I liked the 2016 reboot, and I’m sad there won’t be a sequel. And I worry about this new movie’s existence being seen by the women-hating fans of the franchise as validation for their vile behavior toward the cast of the 2016 film. I’m also worried it’ll suck. But that’s a cool teaser trailer.