This will most likely never happen.

A pure dps ranged dps will never compete for a spot with bard/mch. Having them share gear will just be a pain for the 2 jobs and on top of that unless ranger has incredible TP regeneration to compete with caster aoe dps I don't see it replacing casters either.

The resistance your getting from the community is also another big reason this will never happen. Half the posts in this thread are just simply... no.

So yeah... no.