Stereotype isn’t really the right word (more archetype) and I’m glad they didn’t base them on the original characters. There are vague similarities, but that’s where it ends. Glad we got something new in that regard.
I suppose it’s new in terms of Ghostbusters, but the sassy black lady, weirdo lesbian, and the boring and awkward intellectual are not what I’d call original or new.
Just because the archetype might be familiar doesn’t mean the characters are (as in they’re more than the archetype). My point being these aren’t the same characters that we saw in the original (which is a good thing).