The Last of Us Part II has been delayed into May 2020, according to an official Sony blog post.
Writing for the blog was Neil Druckmann of Naughty Dog. He cites additional polish required to bring the game up to their internal standards,
“However, it was during the last few weeks, as we were closing out sections of the game, that we realized we simply didn’t have enough time to bring the entire game up to a level of polish we would call Naughty Dog quality. At this point we were faced with two options: compromise parts of the game or get more time. We went with the latter, and this new release date allows us to finish everything to our level of satisfaction while also reducing stress on the team.”
The new date is May 29, 2020. Neil ends his post by apologizing for this delay whilst thanking fans for their support and assuring them of the quality of the game.