Have to agree with Vin on this one. Totally pointless. Like a ship without sails, like a car without wheels....
Seriously though, I'm not generally against the concept of remakes, but this just seems like a bad idea. Mainly, I think, because you can't make an Argento movie without Argento (you can barely make one with Argento himself these days LOL) - his style is probably more unique than any of the other director's whose films have been remade in recent years.
Suspiria is a one-off original, that's what makes it so special. Don't remake it - re-issue it to cinemas so we can all see it on the big screen!