Unmanned version of T-14 Armata to be made in 2018 according to Sputnik: https://sputniknews.com/military/20160909/1045123818/unmanned-robotic-armata.html.
If such a tank was to be made it would have a number of advantages over manned tanks. Firstly the tank would not be limited by human shortcomings. It would work in a more efficient manner since the crew would not be under pressure and stress from operating under battlefield conditions. Furthermore the crew would not be put into danger. Now imagine a hypothetical situation were a tank gets penetrated by an ATGM and kills one or more of the crew but the tank is left in tact and is in 'working condition'. Such a tank would be immobilized but the Armata would not. This happened to the Israelis in 2006 where scores of damaged but not necessarily destroyed Merkava tanks were abandoned just over the border with Lebanon. At the very least a damaged Armata could offer resistance. Also it would be fun killing people like in video games . Just my opinion.