In case anyone forgot. The racials are as follows:
Rocket Jump - Activate your rocket belt to jump up to 20 yards, every 2 min
Rocket Barrage - Fire your belt rockets at an enemy within 30 yards, every 2 min. (Shared cooldown with Rocket Jump)
Time is money - Cash in on a 1% increase to attack and casting speed.
Best Deals Anywhere - Best possible gold discount, regardless of reputation.
Pack Hobgoblin - Calls in your personal servent, allowing you bank access every 30 min.
Better Living Through Chemistry - Alchemy skill +15, Your potions give more health / mana
Goblins can be all classes except Paladin or Druids
Darkflight - Activate your true form, increasing movement speed by 70% for 6 sec, every 3 min.
Viciousness - Increase damage by 1%.
Abberation - Reduced duration on Curses and Diseases used against you by 15%.
Flayer - Skinning skill +15, you skin creature fast, and you don't even need a knife.
I was thinking that Goblins would be extremely good primarily as hunters and ele shaman, with the increased survivability of rocket jump or the increased burst from rocket barrage.
Worgen-wise I was thinking perhaps mage/rogue/priest, another opportunity to reset a match for a rogue and extra survivability for mage and priest. Although the sprint ability would be excellent for hunters too.