Really? It's actually a surprise to people that the thing that Microsoft works on after they ship a product is the next release of that product?
I think that perhaps the point here is that it appears to be confirmation that MS are changing the way they cycle updates.
In the past, you would get a new version, followed by multiple SPs (which don't change the version) before a new version appeared, some years down the track. MS would have a team dedicated to the next version, and another team dedicated to each SP required in the interim.
It's been rumored that MS would be moving to a model more like Apple, where a new version is issued every year, and SPs would be eliminated.
This version increment with 'Blue' would seem to suggest that is the case.