I just purchased my second GW-5000, and would love Bluetooth with this classic design. Bluetooth works so much more reliably to sync the time than radio signals from WWVB (if they keep it running).
There is a model that comes close for me -- the black and yellow GW-B5600BC. I'd go for it, but I prefer a regular strap to the combi bracelet. Is there an aftermarket strap that can fit that model??