Square-Enix updated the job information page on the Final Fantasy Tactics A2 official site and there are two blank spots in the menu where you rotate through the tribes. The five announced races are the same ones in Final Fantasy Tactics Advance: Hume, Moogle, Baanga, Nu Mou and Viera. Final Fantasy XII added the Seeq to the world of Ivalice and they seem like a likely candidate to be added into the game. Final Fantasy XII: Revenant Wings also added a new race, the Icarus-like Egul who may also appear in Final Fantasy Tactics A2.
Past the break are pictures of some of the new jobs for the announced races.
Yojinbo (Hume* 1 more new job has not been announced)
Master Monk (Baanga)
Arcane Mage (Nu Mou* 1 more new job has not been announced)
Magic Fencer (Viera)
Green Mage (Viera)
Chocobo Knight (Moogle)
Magic Gunner (Moogle)