I guess you haven't really been paying attention. If you want to see want their future Windows direction, just look at their Surface RT/2 approach has been. It's already is an extremely locked down environment. No sideloading, no alternative web browsers, no non-Microsoft app stores, no Java, no VPN, no open source programs, etc. All your apps must come from a 30% Microsoft taxed store. Windows 8 is just the initial phase down that road. Microsoft has already announced that in the next version of Windows they are taking steps to reduce the visibility of the desktop. They already foist secure boot and TPM2 on desktop users. Do you really believe that it's for the benefit of general desktop users? Or are these moves intended to place the market in a place where at some future time they lock down the desktop just like their Surface/ARM products?
The Microsoft apologists are saying Windows 8 isn't bad because there is sideloading. But when you investigate further, there only is sideloading when you have joined a domain. And you must pay exorbitant fees for that privilege. And you must be running the enterprise edition version of Windows for it to really matter. There is NO sideloading for that single desktop. And this is the current Windows 8. As far as I'm concerned, if you want to develop Metro applications, then you really have no other option than pay M$ their 30% tax. All this really does is make me think twice of even creating a Metro version of my program. And if I do I am going to price it much more expensive on M$ store. And if you don't believe me, just compare the cost of the same app on both Google store and M$ store. When you do find that an app has been ported over, it is on the order of over 500% more expensive on the M$ store.
Yes, for NOW you can still load Win32 application on Win8. But that environment is no longer being actively developed. M$ has pretty much discontinued a whole slew of technologies, including .NET, WPF, Silverlight, and yes, even Win32 for a very incomplete WinRT environment. With Win8, M$ has been much begun the process of locking down the desktop into a walled off garden, for which only they control the keys to, and if you want entry you must pay an extremely high price to enter.