Disclaimer: These are simply my opinions, so, keep that in mind when/if you decide to rage at me because I might suggest your class needs a nerf. Keep in mind I will be using imperial measuring, and obviously the same changes apply to the republic side mirror.
Sorcerer changes:
-10% blocked on Static barrier.
Sprint cooldown increased by 10 seconds.
Force Lightning slow reduced to 35%, but channeled time is now 2.5 seconds instead of 3 seconds with the same damage.
Mercenary changes:
Tracer missile now has a 1.5 second cast time instead of 2 seconds, but has a 3 second cooldown. Power Shot can now proc all the same effects as tracer missile (except heat signatures), and is added to the arsenal spec heat dispersal at 8 heat vented if you crit.
Booster Jets: You now move 40% faster for 4 seconds, 25 second cooldown, mercenary only ability, available level 50.
The passive armor penetration of high velocity cylinder reduced to 30% from 35%.
Marauder changes:
Predation now only costs 15 stacks of fury.
Sniper changes:
Ballistic Cover now is called "Mobile Cover" which projects a shield of cover around you and nearby allies instead of being stationary. Still lasts 15 seconds and has 3 minute cooldown. Gives the effect of being in cover, while on the move, does not require cover to activate.
General changes:
At 50 Huttball fire needs to do more damage (4k per tick instead of 3k) due to the increased health pools of level 50 players.
Huttball also needs a new buff that will spawn on top of the grating that is directly above the acid pools at mid, called "Gravity Stabilizers" for 5 seconds after picking up this buff you are immune to knockbacks and knockdowns.
If you're still with me, thanks for reading.