I am sceptical that 2020 is the year that game streaming goes mainstream. Do not get me wrong, it is awesome that we have reached a point where this is even possible, but I live in Australia and let me tell you a thing or two about the sad state of our internet here.
We have been attempting to roll out a National Broadband Network (NBN) since 2013. The network has been so poorly managed that it is referred to by many as the No Broadband Network because even if you are lucky to get connected, you’re not guaranteed fast speeds or reliability.
Many Australians are still on ADSL connections and an ADSL connection not only suffers from variable latency but also speed depending on the quality, type and length of the copper leading into the local exchange. I used to live somewhere that was 2km of copper running to the exchange, YouTube videos would endlessly buffer, Skype calls failed.
Until the world (well, the developed parts) has reliable internet connections with decent speed, reliability and low latency, streaming will always be a nice to have, but unattainable for a lot of people. Sony will still be selling hardware until at least 2030 I would imagine.