They don't need to relaunch the console though. The audience that would give a shit about a new Xbox One console that does 1080p/60fps or whatever, is us.. here. We'll know. Just like we know about the Xbox Elite and the Elite Controller.
They don't need the new console to sell in significant quantities. They need
any Xbox One to sell. All of them will play the same games, so the 1.5 version only really needs to exist for a smaller portion of the userbase, and much of what it would provide is symbolical... i.e. it'd lessen discussions about Xbox One being weaker etc, even though this would remain true for the most popular model. It also allows them to double up on some of their more enthusiastic users, by selling them a new Xbox console, despite them already owning one today.
And yea... I didn't mean to quote you in that second paragraph.