https://www.techradar.com/news/itunes-could-close-in-the-next-few-days

We've been expecting Apple to close iTunes for a while now, in order to divide it into different apps, and it looks like the tech company is putting the ball in motion, suggesting we'll see the new face of Apple's media plan at WWDC 2019. 

As noticed by Reddit user u/MalteseAppleFan,  the iTunes Instagram account has had all its content deleted – in addition the iTunes Twitter account hasn't been updated in nearly a week as of writing, and all posts on iTunes' Facebook page have also been removed.