The PlayStation 4 can be turned on remotely via the Playstation smartphone app to begin content downloads, Sony has confirmed.
Sony's president of Worldwide Studios Shuhei Yoshida announced the news on Twitter recently.
@SyriasSerj When you buy a PS4 game on smartphone, it will wake your PS4 up to start downloading the game. PS4 goes back to sleep after that— Shuhei Yoshida (@yosp) August 27, 2013
Sony also confirmed this week that the PS4 will support cross-platform party chat between the next-generation console and the PlayStation Vita.