It looks like there will be no more new stuff packs for The Sims 4 until the release of the upcoming Eco Living Stuff Pack set to release sometime in 2018.
According to a post on the Sims Community Blog, in a TheSims.com blog post regarding a name survey for the future pack, an image seen below featuring the future inclusion of laundry in the game was coded under “SP13”. This means that this pack will be the 13th one for the game, with the Toddler Stuff pack being the 12th and releasing last month on Aug. 24.
Since the Eco Living Pack was labeled the 13th and is set to release in 2018, this means there will be no in-between packs released before it in the remaining four months leading into next year. Since release there have been 12 stuff packs released seen here, which simply include more themed items for your Sims to use in game.
There are also much more meaty expansion packs with the Cats & Dogs expansion still set to release this year on Nov. 10, and game packs that allow you to add smaller inclusions like vampire or spas to your game. The last game pack to release was The Sims 4 Parenthood on May 30, with no future ones announced yet for the rest of 2017.