Yup, I remember that discussion on the Botkier subforum. Treesje doesn't seem to do hardware in brass, though, or silver for that matter -- only gold and gunmetal, at least based off the past few seasons' worth of bags.
I also seem to recall a discussion specifically about the Dylans, and I believe a black one with gold hardware was in fact produced and sold at
Nordies, IIRC. Someone saw the black Dylan with gold hardware in store, and I wondered whether or not it was Timoro instead (since Timoro seems really close to black), but they verified that it was black with gold hardware. IIRC,
Nordies got the Green Dylan earlier than everyone else too! (This was at least a couple of months ago, IIRC, and the Green Dylans have only been just released as a Holiday 2009 bag.)
I'd probably email Treesje's CS just to verify, but I think the black Dylan with gold hardware (and the green Dylan that they got earlier than everyone else) was probably a Nordies-only bag (whether it was an exclusive or just an early preview/production run that they got). HTH!