What is city life’s future?

I think city in 70 to 100 years will be empty for a most part. Because I predict people will have virtual reality rooms, which will be advanced combination of todays Facebook and video games.

People will wake up in a morning, switch to the group of morning exercisers, and a room will show a forest and a exercise instructor and all fellow exercisers. They all in real world will be in their homes, but virtual reality’s room’s walls and ceiling and floor will be just big 3D television's screens which will show them real time computer generated graphics.

And people will never have to leave their homes, because food will automatically come to refrigerator by placing refrigerator in a wall with hole to outside. So refrigerator will be programmed in advance what food is needed, will order what is lacking and robots (or people) will bring the food open refrigerator from outside the house and owner of the house will open refrigerator from inside the house and see all the food (security issues is not a point of prediction, they will be solved).
So people will stay in their home’s working in simulated offices with real colleagues but just on the screen rather then flesh and bone real ones like today. Flying in simulated world of James Cameron's Avatar’s Pandora with their Facebook type fiends, playing games, chatting, flirting, going to projected Lady Gaga type of concerts all in their homes.
No need to ever go outside