SWTOR update 1.4 files have been dug around in by some industrious types, and it looks as though some more content is on the way according to what was unearthed.
Granted, if you are anything like us, we don't like knowing everything which might be on the way - a bit of a job hazard here at VG247 actually - so, instead of posting it all, you will have to head over to the SWTOR forums.
What is not so spoileriffic is the idea of a new boss, a new area, pets, a new companion, and dallies. We're giving you the goods without showing them in a sense.
No word on when these options are coming because the content isn't "official" per se. Anyway, there ya go.