I also read that there will be a guest house (call it a hotel if you want) featuring all RH furniture, though it will only be 36 keys total.
And yes, a restaurant as well, though whether it will be a dedicated space or something more integrated into the showroom itself remains to be seen. From Candy's Dirt:
"I mentioned a restaurant, didn’t I? RH Galleries want to blur the line between retail and hospitality. Clearly the hotel guesthouse goes a long way with that. A restaurant goes further by exposing more people to it. The Chicago RH Gallery pitches itself almost Starbucks-y in that while there is a designated restaurant area, customers can be served in any vignette in the store. Want to while away wine with the gals one afternoon on a sofa you’re thinking of buying? Done. Think of it like Pirch, which allows customers to come in early and schedule time to try out the showers before buying. They want you to dawdle in the store because you’re spending time in an infomercial … a gorgeous, tasty infomercial."