As time goes on, I think MS will care more about enticing people to sign up for a Microsoft account, than they will with selling a home console, imo. I think this is early signs of them laying the seeds of possible turning into a services and game division, and getting rid of MS specific hardware. If they have the games available on the cloud, and on other platforms like steam/playstation, and have everyone signed up with a MS account and Gold, then they don't need to really waste time on everything that goes into having a physical console.
Yes, they want Xbox as a service to be a big gaming brand. And that is something they can do without having a physical console. The "Xbox" brand is more than just a console these days. When you mention the word Xbox, it encompasses much more than just the console itself, it means Music, Video, Reading, television, the cloud, a great online infrastructure, smartglass, game branding on mobile/PC/360/X1.
I don't believe they will sell it...but transition it away from MS specific hardware dependent? I think it could happen.
This. Remember, Microsoft's "opponent" is not Sony and Nintendo...it's Google, Apple and Amazon.