I read some articles released. "1313" does not relate to Boba Fett, as most people thought it would, but to the area of Coruscant the game takes place on. Although it still involves bounty hunters, which, combined with the title, would hint at Boba Fett playing a role.
Also, the time period of the game seems very unclear. Screenshots show your player looking at a Lambda-class Imperial transport, but most articles talk about the setting as "beneath the glittering spires of the Republic's capital." So who is the government in the game, Republic or Empire?
I'm sure E3 will reveal more info.