There's a number of Achievement ideas I came up with (some of them humorous) which are specific to new elements of the game shown in the Alpha, but naturally, I can't mention them due to the NDA, despite my eagerness to. Ah well.

Here's some more from 1.0 though:

(Notorious) Monster Snack - be defeated by any NM in any zone by foolishly picking a fight with it solo as any class lower than level 20 (I did this a few times with Barometz in La Noscea ).
My Armour is my Temple - keep your equipped weapon, armour and accessories at more than 97% durability at all times for more than a week of play time, without resorting to using NPC repairs.
What Did Your Last Slave Die Of? - turn down more than 100 consecutive quests (non story/leve).
I've Quit Jobs That Pay Better Than This - receive 50 quest rewards of less than 200 exp or 300 gil.
I Like Taking (Dirt)Naps - be KO'd more than 1000 times.