I did not read all of your responses, so this may be a duplication. I suggest enclosing the room while removing the wall between the new space and the existing space if this is possible. You will be incorporating the new space to enlarge the adjoining space preventing you from loosing the view. Depends on where the patio is located in relation to the room/rooms it is behind. With luck, they line up and you will wind up with a much larger family room.