First, there would be a fireplace... I imagine lots of cozy family nights reading a book or playing a game around the fire!
Then we would need one of these: (because of course I would have our children trained to put all their toys away at the end of the day, right?!)
In my perfect family room of the future, there would be lots of seating choices - some that would even double as storage!
The seating and furniture would be as kid friendly as possible while still having taste:
And... of course... because who are we kidding, really? The TV would have to go somewhere:
What does your family room look like?