The new world event called Grand Acquisitions Race is now live on SWTOR servers. From what I've seen of this event, it doesn't look as interesting as the first one, but time will tell.
The story about it, is that Chevin Conglomerate declared the Grand Acquisitions Race, which is basically a treasure race/hunt. Players are invited to look for traces over 2 of the planets. The first one, Nar Shadda is shared for both faction, and the second is the home world for each side, Dromund Kaas and Coruscant.
Rewards are the usual, a pet, a mount, some appearance gear, titles and achievement and a new design weapon, bowcaster (like the weapon that Chewbacca uses).
A full detailed guide can be followed here.