I thought it already was in London. Fresh & Wild is owned by Whole Foods, so I guess that's what I was thinking of. Apparently, all new F&W shops will now be called Whole Foods, but they're leaving the existing shops with their old F&W name.
I am jealous, though. Whole Foods used to be my regular supermarket in the US and I really miss it. I ventured to Bristol just before Christmas on one of my cross-country jaunts, and stopped in at their Fresh & Wild. It was sooo disappointing. Really small with not much of a selection of anything. I guess I was expecting a huuuuge Whole Foods type store. Hopefully the new London one will be good!