GUYSSS!!!!
Nicki is backed by Lil Wayne right? Lil Wayne survived in a Kanye, Jay Z and more great rappers that are better and as successful as him, world. Many people think Lil Wayne is a horrible rapper, but he has maintained 12+ years in the game. his last album (which was horrible by the way) sold 1 million in the first week. Kanye and Jay didn't even do that much, his only main big competition is/was Eminem. Lil Wayne is hated by many hiphop fans, but are loved by the poptarts. and he is still surviving, selling and making money with all of this competition. One of the biggest rappers in the world next to Eminem. He even has a new album coming up.
See where I'm going? New female rappers may come up and be better (well more talented) than Nicki, but Nicki will still reign supreme, and they can all exist. Some will hate Nicki (like they already do

) some will still love her and vice versa.
That thought just popped up in my mind. Hope that makes sense