"Windows Live was first announced on November 1st, 2005, and in our press release we described it as “a set of personal Internet services and software designed to bring together in one place all of the relationships, information and interests people care about most, with more safety and security features across their PC, devices and the Web.” Since that time, we’ve been hard at work building software and services that deliver that promise, a foundation that we could rely on as we designed new versions of Windows as well as other Microsoft products. We’ve received lots of feedback about features and ways we could improve the software and services. And we’ve also received some feedback about the naming and marketing we have done. Windows 8 is a chance for us to act on that feedback and reintroduce you to the broadest and most widely used collection of services on the Internet.
No word about Windows Live Writer, but I'm not holding my breath. Got to say it would kind of piss me off if that becomes unavailable. I use it every day, multiple times a day. Also its too bad the Windows Live Essentials never lived up to its promise. I sure hope the Metro versions are at least as good and extensible as WLE was (but I doubt it as there doesn't seem to be any "extension"/plug-in/add-in story for Metro apps).