With the news this week that Jason Reitman - son of original director Ivan Reitman - is working on a new sequel to 'Ghostbusters', the question of casting appears to have already been answered.

Ernie Hudson reportedly told the Daily Mail (yeah, sketchy) that both he, Dan Aykroyd and Bill Murray are all set to return for their respective roles. Harold Ramis, who played Dr. Egon Spengler, passed away in 2014. Aykroyd, it turns out, actually revealed the status of 'Ghostbusters 3' in an interview with Dan Rather two months ago.

Aykroyd described the then-unnamed writing duo - later revealed as Jason Reitman and Gil Kenan - as "a good team and they are making an effort to bring back all the emotion and spirit of the first two movies and then take it into the 21st century with a vernacular that's needed today to get it across."

'Ghostbusters 3' has been working under the title, 'Rust City', and has most likely begun filming already with its expected release date in the summer of next year. A first teaser was posted online on Wednesday, with speculation rife as to who'll be cast alongside Murray, Aykroyd and Hudson.

A synopsis by Production Weekly found yesterday claims that a teenage cast is being sought, with some speculation claiming that they're the children of Venkman, Stentz et al.

So far, Sony Pictures and Jason Reitman have kept schtum on the plot details and casting - there isn't even an official title yet for the movie either, with most people assuming it's just 'Ghostbusters 3'.