(be warned, this list does spoil the names of certain bosses/NPCs)
The Achievement/Trophy list for Dark Souls 2 has been posted online. It can be viewed here.
It appears to be very similar to Dark Souls, in that a lot of the achievements are allocated to joining covenants and obtaining all magic spells. Interesting to note, there's what looks like a new type of magic called "Hexes". The image the represents it looks similar to the dark magic that you could acquire in the Dark Souls dlc.