So the new TOR site design doesn't have a events page anymore so I'm going to post the obvious events that TOR is probably going to show up at. So we can make our wild guesses on what they might reveal
San Diego Comic Con - July 11 - 15 -my guess is a 1.4 preview but won't show up on the PTS until September.
Gamescom - August 15 - 19 - Another what's coming in the future preview hopefully with a look at the secret space project.
Star Wars Celebration - August 23 - 26 - forgot about this one.
Pax Prime - August 31 - No clue just devs talking face to face to the community.