They stated that each group is getting its own loot pool. Check the dev Q/A for the official post.
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Can I only like this topic once?
Related:
http://forum.square-enix.com/ffxiv/t...ty-and-options.
It's certainly nice looking, but I do wish they would stop with the "same model for all casters, just recolored based on if you're dps or healer" thing (and same model for all physical dps, same model for all tanks). Each class should have their own unique armor set. :\ The reusing of models with recolors to distinguish role is extremely lazy.