It looks like a remake of Suspiria is still a possibility for director David Gordon Green. While talking to The Playlist about his upcoming film, Your Highness, he mentioned that he's looking at a remake of Suspiria as his next film:
“I’m hopefully going to get into a horror film, [‘Suspiria’] next. That’s the goal,.... It’s actually very faithful. I’m gonna put my spin on it, but in terms of a pitch, it’s going to remain quite faithful to [the original].”
He goes onto mention that before Black Swan, he was considering Natalie Portman starring in the film, but is now looking to cast an unknown. As David Gordon Green is going to be on a press tour to promote his upcoming film, I'm sure we'll hear a lot more about his plans for Suspiria. Your Highness will be released on April 8th, so it shouldn't be too long before this is confirmed as his next project or not. To read more details regarding his plans for the remake, visit the source link below.