I think there's about zero chance of putting positionals on a ranged class, unless it ends up as a ranged+melee mix similar to RDM, but I think RDM had that aspect of its class mentioned in its reveal and there was no similar mention for DNC.
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The mere fact that it uses throwing weapons makes me think it'll be more like XI than anything. I think that's the only iteration that used throwing weapons at all, never mind chakrams. Official art of their FFXI equipment:
https://vignette.wikia.nocookie.net/..._Equipment.jpg