I am rather looking forward to it.
It is going to depend on the chemistry between the stars to make it work, just as the original and much loved did. Feig is good at that, from past work, and each or the actors are individually very funny and gifted at working with others and responding to non verbal cues, at least in a sketch setting. Whether they can stretch it to a feature length is debatable.
Of course, the biggest problem with 4 comediennes is one of them will have to play the straight man.