You mean AHS12? It's called Delicate. It's based on Danielle Valentine's book Delicate Condition, which will come out, I believe, after the season ends.
The official premise is "After multiple failed attempts of IVF, actress Anna Victoria Alcott (Emma Roberts) wants nothing more than to start a family. As the buzz around her recent film grows, she fears that something may be targeting her - and her pursuit of motherhood."
Because of the SAG/WGA strike, it'll be split into two parts. The first part will have five episodes, the first will air September 20.
Emma Roberts will obviously star, with newcomers Matt Czurchy, Kim Kardashian, MJ Rodrigeuz, and Cara Delavigne and returning cast members Denis O'Hare, Zachary Quinto, Leslie Grossman, and Billie Lourd.