Horses are just awesome like that. This isn't an Appaloosa, but there's an Andalusian colt at the farm my boy is at who's greying out (I think from dark bay) and he's at a stage where he looks so beautifully roan I wish he'd stop. My BO is hoping that when he finishes he'll look like his mother, which she calls a "white bay" (she greyed out and is now almost pure white, somewhat fleabitten, and has black points).
Okay. I THINK He is a Black/Blue Roan with a blanket w/spots that starts at his withers. And Sabiano(?) is at work with his blue eye ,white socks, and the face white... I think. No yes?
What a beautiful and cute colt! I hope he did well with his recent surgery?
I think he is indeed a blue roan, a color term the differs for Appaloosas and Quarter Horses (different genes cause the roaning, a roan Appaloosa does not necessarily have the dark head as Quarter Horses do). The leopard spots do override the roaning, he will not lose them but quite the opposite - the body-roaning may fades and the spots get brighter.
I had a gelding - probably an Arabian-Appaloosa-Mix - who got brighter in his summer coat:
One thing about this coloring - it never gets boring and each hair change is going to be a new surprise
As for a sabino pattern - maybe, his feet markings are not very "clean" which can be a sign for sabino - as well as the blue eye. But it could be normal markings mixed with some freak Appaloosa gene, too, I have seen Quarter Horses with no sign of Sabino nowhere in their pedigree but partial or full blue eyes.