We are developing a dynamic DNS service as well as port proxying that allows you to serve traffic on non standard ports as if they were normal. https://github.com/cznweb/deluge (Disclaimer: We can't encourage you to violate the ToS of your ISP, so if port blocking is against the rules then that is for individuals to handle themselves.)

In the future (read: when the dashboard and the aforementioned tools are stable) there may be ways for individual arkOS nodes to communicate with each other without an intermediary, mesh-style. But that is a long way off.