To be honest I think Bard (currently implemented) is as close to a support as we are going to see, however; I think it could be tuned a bit more, allowing for more variety such as melee (dancer) or caster (Red Mage) yes I know, Red mage uses swords. But let's face it, Red Mage's best attributes are En/Bar spells and the ability to use healing and damage dealing spells. their melee dps will never beat a drg or mnk, but their spells are at least unique enough to make it worth having.