The PS4 (or whatever it will be called) might be unveiled on 20th February this year., so we might find out a bit more about things then. Though if it is the actual video standards could still be changed ie. it would probably use software playback.
Have any of the upcoming TV's themselves stated explicit support for 1080p48? IOW, is it soon to be considered a requirement for it to be listed out on TV's and Blu-Ray players, etc.?