So you cannot future proof. You can only hedge. Case in point is USB-C. You might buy a 30W output USB-PD charger say which has a common denominator of 10W. So then in the future you might buy a 60W input device and find you hadn’t future proofed sufficient. True you can go some of the way there.
You then get for example, in the future you own two USB-PD input devices and you future proofed with a single output port charger.
Or a better version like smaller or better tuned comes around.
Or you paid extra for the leading edge and then a year later you could have bought it for less as volume and competition drives down price.
Just buy today on what you need today, because you only really know is today.