What I would like to see (and hopefully others), is the “People App” brought over to the Microsoft Launcher/Android, to directly manage phone contacts through native functionally. That way, we would not have to be cornered into using Google Contacts or in my case, the HTC contacts app, to manage something that is housed with Microsoft.
Similarly, please, please, please, integrate a a “Phone App and or Dialer” that offers a Caller-ID similar to that of Windows Phone 8.1, i.e. a full screen contact picture. This alone would get a huge reception, as the little contact bubbles have been a chief complaint by end-users on Android, since forever.
Both of these would be amazing, as with the addition of the SMS Organizer, the end-user would be able to create a complete Microsoft ecosystem.