My hope is that at *least* for the first launch they support SteamOS (but not steam integration - just that you can install it on a copy and run it yourself), and potentially other debian based distros.
If they do, I'll probably go full SteamOS as soon as it's viable - especially if it's a faster boot and can basically boot me directly into the game

That's what I want my PC to do. As soon as games come through that I might want to play, then I'll maybe play them too
Edit: Actually I wonder if you could create a linux distro based around Elite?

When linux support is there, you basically fast boot into the OS, and can either launch directly into the game, or the desktop. But the desktop would probably load in the background anyway.
OS could have some useful tools such as a opengl based galactic map? If we can get the data of course, and something to track your trade routes like some open office spreadsheet. Chrome support too. The only worry would be joystick drivers - doesn't look like there is anything for some.