It looks like EA is pushing back the release of Battlefield V by a month to November 20, 2018. As noted by a MarketWatch post, EA is pushing some of its "net bookings" earnings from the Xbox One game to fiscal year 2020 instead of fiscal year 2019.
"Videogame companies use net bookings in lieu of net sales because it accounts for digital sales and in-store physical sales, among other things. EA is now expecting fiscal 2019 net bookings of $5.2 billion, down from prior guidance of $5.5 billion. About $115 million of that sum is driven by currency movements, which are also driving operating costs down. EA said it is backing its second-quarter operating guidance but is still evaluating the impact on fiscal year GAAP guidance. That information will be provided on the company's next earnings call slated for Oct. 30. Shares were halted for the news, but have gained 22% in 2018, while the S&P 500 SPX, -0.23% has gained 9%."
EA has not made an official comment on the reason why Battlefield V was delayed specifically. However, after looking at early pre-order numbers and receiving feedback from the Battlefield community, EA decided to move to the November release date. The move will help Battlefield V better compete with two other blockbuster games set to release in October 2018; Black Ops 4 and Red Dead Redemption 2.