While I wouldn't mind them toning down the skeumorphism a bit, I really REALLY hope they don't go too far in the Windows Phone direction.
But...that's just me...
It's Jonny Ive running this. I don't think he's one to "phone it in". After the last 20 years making Macs look the way they do I don't expect he's going to just carbon copy Win. (I know, he got his inspirations from Deiter Rams - but it wasn't Microsoft.)