Hmmmm. I like most of Amok's stuff, but that's not really how I imagined the Others... they're too human, for mine. I pictured them as more otherwordly. Something like the Ringwraiths in LotR, but whiter.
I'd say they'll start to play a bigger part in A Dance with Dragons, with some of the focus shifting to the North and Jon and Stannis, and then, obviously, in The Winds of Winter.