Yeah- I'm also interested in the 4805 since the 3805 looks like it will never provide SACD over Denonlink. The bright side appears to be much better bass management (like the 5900) so that SACD over analog might work wee provided the new DACs can offset the additional data conversions.
Sadly, neither the 4805 or 5805 is supposed to make an appearance before CES.
Bob