Underneath Star Control is CIDER which is our next-generation game engine. This engine uses Nitrous as its core.
All the components were designed to be ported and Oxide (the devs of Nitrous) have already begun porting it to Linux and Nitrous already supports Vulkan and DirectX 12.
We also have to port the Cider pieces as well and that will also likely go to Linux first as it's the most "open" platform. Once you're on Linux, lots of other platforms become easier.
Then it's a matter of which console makes the most economic sense first.