Along with the release of all the new episodes, there are quite a few achievements introduced with the full release of Mafia Wars Bangkok. Here is the full list:
Sawatdee: Earned by gaining access to Bangkok.
Note: This achievement was available since Bangkok beta.
Dead or Alive: Earned by gaining Allied status with the Yakuza Faction.
Hard Boiled: Earned by gaining Allied status with the Triad Faction.
Bangkok Dangerous: Earned by gaining Allied status with the Yakuza and Triad Factions at the same time.
One Night in Bangkok: Earned by completing Episode 5A or 5B of Bangkok.
The interesting thing is that the "One Night in Bangkok" achievement leads me to believe that players might have to choose between doing Episode 5A or 5B! This will make things interesting for sure.