MOAR (hackneyed) RUMOURS:
http://www.aintitcool.com/node/70168
He's provided character descriptions for the four protagonists. There's Erin, a parapsychology professor at Columbia, much the same way the original three guys were in GB 1. She used to work with Abby, who, at the time the story begins, has been hunting ghosts on her own alongside a partner named Jillian. Then there's Patty, an MTA worker who, by happenstance, comes across the main ghost the other three GBers are pursuing. Drew has Wiig pegged as Erin, Jones for Abby, McKinnon for Jillian, and McCarthy for Patty, though I think there's a chance that Jones and McCarthy's roles will be switched.
Even bigger than that is who Feig wants for the contemporary Walter Peck, the computer nerd dead-set on revealing the GHOSTBUSTERS efforts as a hoax: Pete Venkman himself, Bill Murray.
And, as mentioned in the Sony hacked emails: "Drew also purports that they want Peter Dinklage to play the villain, "a creepy mechanical genius."
Also, here's some wonderfully one-sided sensationalism from a "credible online news" source:
"Fan reaction to new 'Ghostbusters' will make you lose AND gain faith in humanity"
https://tv.yahoo.com/news/fan-reaction-ghostbusters-lose-gain-203300928.html
You know what always wins an argument AND coerces people to got to the movies? Calling them bigots.
Let's remember the most important thing here: Paul Feig has guaranteed us a "scarier Ghostbusters" with "funny women." GUARANTEED.