People could become more isolated if they have robot "friends" surrounding them at all times. There are people who have AI girlfriends already, they would love a robot version I would guess...

Robots will start filling more day to day human tasks, but not extensively for another hundred years or so I would guess. Battlefield robots will likely come first, they're more expendable than humans and will lack consciousness.

That's of course assuming that World War 3 doesn't come along first and kill off half of the life on earth. The world is an interesting place right now, but also a terrifying one. All it takes is one mistake on one side and nuclear war becomes a reality.