WP8.1/Win10 store application advertising, this is the rhythm of the big one?

Computer store news: Microsoft's latest video ad led everyone into the world of Windows applications, not just Win8.1/Win10 applications, WP8.1 applications are also mentioned in the video.

The Windows platform application ecosystem has always been a user's regret, especially when compared with iOS and Android. In just 30 seconds of video, Microsoft showed a large number of Windows 8.1 and Windows Phone 8.1 boutique applications to users, while demonstrating the split-screen multi-tasking features of Surface Pro 3, and the light flagship Lumia 830 became the protagonist of Windows Phone in the video. .

But the curious thing is that when Microsoft mentioned the Windows and Windows Phone app store in the video, it only used the term Windows Store. Does this imply future Windows 10? App store merge?