Hedi won't go to Gucci or any of the Gucci brands. If he does, I'll eat my hat. Pilati is doing a good job at YSL and I believe most people are happy with what he's doing; the talk of hedi going there makes no sense to me. It would be like Marc Jacobs going back to Perry Ellis. There is nothing at stake except absurdity if he goes back to YSL.
Chanel menswear would be perfect for him, if not his own line. He wouldn't have to worry about democracy of cut or price; Chanel is already known to be one of the most expensive brands and people expect that, so a $2500 jacket wouldn't frighten people, nor would the fact that it might be cut so slim it is better suited to a large snake.
As well, Chanel makes enough from perfumes, bags, and cosmetics to allow a less democratic line and one that could be more focused on creativity and a smaller clientele (like Dior USED to be in the beginning). If hedi had his own line, there would be more pressure to make an immediate profit and he DOESN'T have a lucrative cosmetics, perfume, accessory line already in existence to cushion his "whimsies." Maybe we'd have to see Puma for Hedi Slimane, H-3 (Hedi Adidas), or "H" by Hedi diffusion line produced by Ittierre.
So, in short, only three possibilties as I see them (in order of probability
staying at Dior, his own line, Chanel. He'll probably just stay at Dior (boring), I'd be in line to buy his Chanel, I'd at least visit his boutique if he had his own line.
John