Electrical designs that can be expanded are the best. Renovations and remodeling are considerably easier to plan and execute when your home has enough area on the panel box for your future power needs. It's an excellent idea to rough in power in locations where you expect to do improvements later, such as the garage, basement, or attic.
Many newer technologies are becoming wireless, but they still require power and other high-tech connections like phone jacks and fiber optics. Who knows what the future holds for electrical systems and technology, but staying ahead of the game means designing your system with the future in mind.
Home electrical system design might be scary, but you can build a safe and efficient system with the help of a certified and trusted electricians in my area and parts that meet NFPA requirements. Plan forward as much as possible for future demands, and your design will be far more versatile and durable. Your house will function much more smoothly as well.