Sinanaj announced that she has created a fashion range called 4 Seasons which is marketed to women with "beauty and brains", in a press release obtained by Page Six.
Her pitch reads: "[4 Seasons will] cater to those jet-setting women who need to look hot and sexy in the dead of winter on a quick get away to St. Tropaz or Maui."
The statement also included a reference to Minanaj "writing a much-anticipated raw account of her life" in a possible memoir.
Minanaj will apparently "push the limit on decency, scandal, sex, and trafficking" in the book, according to the press release.
She famously rose to fame as Humphries's girlfriend following his split from Kim Kardashian after just 72 days of marriage.
Minanaj was rumoured to be pregnant with Humphries's child in July, but she later suggested that she is just a "thick, curvy girl".