Beta Hub Ver. # 1.6.2.15830
With today's beta update we received our widget back.
Few notes:
1. The widget still shows Sent items though the feature is turned off in Hub. That's a long standing issue.
2. If I am not mistaken the Compose button at the bottom Hub's message list used to disappear as the user scrolled down and reappear when the scrolling stopped. It looks like it doesn't disappear at all now. Am I dreaming or that was indeed the behavior? If it wasn't then please add it :)
Also, as noted by @LiamQ a WhatsApp "you" bug was NOT addressed with this update. A fix is being tested for possible release next week.