Could be awesome...
When I first heard they were remaking Suspiria, I was rabidly opposed. But the powers that be in Hollywood overruled my strenuous objections. ;-P
David Gordon Green is an intriguing choice for the director. Green's really good at developing characters, and George Washington and Undertow are terrific films. I don't think this will be simply an Argento re-do, but a reimagining of the basic story. Who knows where they'll go with it.
I didn't think remaking Dawn of the Dead was a good idea, but look how well that turned out. A lot of naysayers ended up liking it.
I'm cautiously optimistic, and definitely interested to see where this leads. Given the talent and director's track record, I'm thinking this could turn out awesome.