They're getting the band back together!
I'm surprised, Bill Murray's been a stick in the mud about this for so long Harold Ramis died first. But maybe Bill needs money for drug or whiskey habits? His vanity overcame his trolling? He saw the terrible Feig film and thought he had to do something? Are you, Bill, currently menstruating?
Ernie Hudson will do any job, he pretty much is Winston Zeddemore; and Dan Aykroyd is still a great performer (and maker of the best vodka I've ever had). Get them and some newbie interns still doing the job, don't be preachy, don't make science look stupid; GB 1984 was all about science and a tech industry startup saving the world from the supernatural; II had real science with Egon's puppy/child experiment, and absolutely stupid shit like the dancing toaster, but the guys followed the evidence and used the goo to fight Vigo, so it paid off; the Feig thing might as well have been incanting spells over wands.
Jason Reitman's done mostly very straight, deadpan romance-drama things, but Thank You For Smoking shows some comedic talent.