In an era of armed, cheap, autonomous, unmanned vehicles, be they land, air or sea based, I reckon all bets are off not only for tanks but also warships, subs, helis, even fast jets. You just can't compete with this level of technology.
Re warships and subs, in a few years I wouldn't be surprised there's a fleet of unmanned vessels (above and below the water) waiting in international waters offshore major bases to accompany any major vessels whenever they leave port. And not just of Chinese origin - western powers too.
Also, regarding MBTs and ACVs in general, recent events in both Syria and Turkey have shown them to be incredibly vulnerable to modern man portable anti-armour weapons and drones.