Paradoks: Optimistic part of me wants to believe that it will be for Windows 10 what Windows 7 was for Windows Vista, but I always had problems with optimism. Changes that were revealed thus far don't look convincing - new disk management tool for example looks horrible (old one may look dated but at least it's easy to read).
I am much less interested in how it will look, whether icons are rounded, what kind of start menu it has, what kind of startup sound it has etc...
I am more interested what will be delivered under the hood. For instance:
Microsoft has reportedly been working on a new app store for Windows in recent months, and rumors suggest it will be a big change from what exists today. Microsoft CEO Satya Nadella has promised to “unlock greater economic opportunity for developers and creators” with Windows, and that will likely come in the form of a new store.
Microsoft is reportedly overhauling its Windows app store to allow developers to submit any Windows application, including browsers like Chrome or Firefox. Microsoft may also be considering allowing third-party commerce platforms in apps, allowing developers to avoid the cut Microsoft usually takes from in-app purchase systems.
...which to me seems to suggest that MS is ramping up the push for Windows Store as the default place for people to go to, even if they wanted to install a Steam or EGS or Galaxy client from there.
I want to see how Gabe Newell and Tim Sweeney react to those news. Earlier they have been the biggest critics of Windows Store, calling it an attempt for Microsoft to lock down Windows so that competing digital software stores wouldn't have meaningful life in their ecosystem, in the long run.
"Allowing" competing software stores to work through the Windows Store sounds like the familiar "embrace, extend and extinguish"-tactic that Microsoft has used also in the past. First try to make it appear you are their friend, but at the same time taking control over them, etc. etc.
We will see. Maybe Valve will put even more effort to their Plan B, Linux gaming.