i want to host a server with my homepc 24/7 but i dont have a public ipv4 address, they all taken in germany (ipv4 addresses)
It is not needed to be supported by Empyrion, that is an OS function, not a game function. Your Windows box controls the IP Stack, not the game.
Empyrion would need to be able to handle IPV6 addresses as well. I have no idea if it can or can't. I agree it's a feature that's becoming increasingly important as we run out of free IPV4 addresses.
I agree, that the support of IPv6 addresses is necessary. Several ISPs nowadays chose the concept of dual stack lite (multiple customers share a public IPv4 address). This cripples the possibility of such users to host a game.