The Sims 4 First Expansion Pack will be released in the 2016 Fiscal Year and luckily for Simmers this starts in April. It is unclear when the Pack will be released, but information should be expected from April this year.
"The reduction in our Q4 revenue expectation is based on uncertainty around future currency movements and the decision to move EA SPORTS PGA TOUR and the first Sims 4 expansion pack to FY16."
There was also a statement made that EA will not be giving up on The Sims 4.
"Our Maxis studio delivered three major game updates to The Sims 4 during Q3, providing fun new content and adding some of the most-wanted community features. Each update has driven more players to engage with The Sims 4, and we have plans to continue delivering fresh content and gameplay to the vibrant Sims community."