with powerline you can risk getting shitty speed because a device output dirty(instead of 50 hertz maybe it will swing between 40 and 60) power back into the cables
there are only two solutions Ethernet and Wireless
Powerline should never have been invented it is very unreliable unless it is a single wire directly connected between two rooms
The Scorpio should be shipping with AMD Freesync, and apparently Microsoft is gonna try to get TV manufacturers to implement it in TVs
Gamasutra post with the specs of Scorpio