Patreon goal has not been reached yet, all money generated by the patreon is used to comission the artists, our goal is to one day earn enough to have the artist workfull time for us. What make the updates come earlier is this, hitting the patreon goal so we can do more comissions.earlier in the forum, after the roadmap, it was said that it is possible if everything goes well in 0.7. The roadmap is still a fixed and conditional thing for our changing world, as can be seen in 0.6, more has already been implemented than indicated in it.
No member of dev team earn a penny, if we ever earn enough to have spare money this can change but probably will not.
Yes more content than is written in there may be implemented, but they are unrelated to art dependencies.