Boomerangs, bolas, potion vials, yo-yo?s?well not exactly throwing, slings (I mean slings and not wrist rockets) staff slings, blowguns, throwing stars (can never remember how to spell shurikens), caltrops, poisoned powder, rocks and all the things in between will be considered at some point. But, that is not to say we will have it, simply we will look into it when it is appropriate.
Right now it is not. And it is way premature to say what will be in the game and what will not as far as projectile weapons go?.other then chemically propelled projectile weapons, as for lasers and magnetically propelled?well we?ll leave that to the mages :-)