I seem to remember reading somewhere they have been testing with linux games on Steam and GOG, so there is that. And with modern game development tools, you can simply change your build output checkbox from PC, mac, android, ps4, or whatever to linux, make a few changes as needed, and you've got yourself an Ataribox game. So it's not like third party developers are going to have to risk a lot of time and money on a doomed console.