So... you'd basically want them to add 7(!) new jobs? I'm not counting arcanist, because that one already got the treatment you're proposing.

So the answer to "what if" would be either "balancing nightmare" or " even more homogenisation between jobs". Neither of which I think are a good thing - I'd rather see less jobs with more identity than an aweful lot that are in essence all the same, just with slightly different animations.

I also think that it would be more interesting to see actual new jobs that use new styles of weapon and fighting over a variation on existing jobs.