Dungeon wont be added too Class and battle system which i think 1.18 is battle and 1.19 could be class system then 1.20 would be dungeon and ishgard opening for everyone then around 1.21+ it may go P2P with news on ps3 release but don't count on what i saying that just hint i been getting at from the interview with SE. you know SE alway leave little hint that you pick up lol. They said they want September to have this game 100% ready for PS2 and ps3 release.

So 1.18 Next month = battle system "Maybe"
1.19 june "class system "Maybe"

Then dungeon and the rest of the stuff and maybe some good news at E3 maybe