I'll believe it when I see it. All we have here is a remark by an illustrator (albeit one who's worked with the band) that he's created artwork for an SACD release. No firm date, no label, no country of release, nothing from the band members or their management. Check the thread on the SACD forum - goes back to 2005 with many "almost certain" release dates between then and now.
One thing that gives me a small bit of hope is that EMI, through Virgin, is doing the Genesis SACDs in the EU, so it's not entirely far-fetched that they might release one or two selected other rock catalog titles in the format (Kate Bush...now that would be nice. I can dream.)