This decision comes direct from Sony.
Last of Us Part II Delay

In the early afternoon on April 2, word came direct from Sony Interactive Entertainment (SIE), that both The Last of Us Part II and Marvel's Iron Man VR are delayed "until further notice." The reason behind these delays is, you guessed it, due to the ongoing global crisis.

Word first came from the official PlayStation Twitter account.

This was then expanded upon by a tweet from Naughty Dog's official Twitter account. The studio posted a message, which can either be read below or seen above in this news posting.

This is now the second official delay that has hit The Last of Us Part II. The first was simply because the game was not yet finished. The first release date was set for late February 2020. It was then delayed until May 29, 2020. Now? Well, we'll just have to wait and see.