According to a GameSpot article and Polygon's sources, EA has just landed the deal for the sequel to Titanfall 2 from Respawn Entertainment. Polygon's sources have said that Titanfall 2 will this time around, not be exclusive to Microsoft platforms.
Titanfall, which was only released a couple of weeks ago, was exclusive to Microsoft platforms: Xbox 360, Xbox One and PC. An EA representative told Polygon that it wouldn't talk about the rumor, saying: "We do not comment on rumor or speculation. Right now all our focus is on supporting all the fans worldwide enjoying Titanfall."
Rewinding back to October, Respawn co-founder Vince Zampella tweeted that his company would eventually make games for the PS4, implying that Titanfall's exclusivity to Microsoft platforms was limited to just the first Titanfall. Hopefully we see this materialize into Respawn making Titanfall 2 for the PS4.