TechCrunch:

Instagram is preparing to unveil a home for longer-form video — a YouTube competitor and its take on Snapchat Discover. According to multiple sources, Instagram will offer a dedicated space featuring scripted shows, music videos and more in vertically oriented, full-screen, high-def 4K resolution. Instagram has been meeting with popular social media stars and content publishers to find out how their video channels elsewhere would work within its app. It’s also lining up launch partners for an announcement of the long-form video effort tentatively scheduled for June 20th.
I called it!

(as did anyone who was paying attention. I’m not that smart.)