Complex sentence: On February 2013, Antin announced that she had scrapped plans for the new line-up to replace the former members of the Pussycat Dolls and would instead form a new group who will be the "next generation".
Split into simpler sentences: On February 2013, Antin announced that she had scrapped plans for the new line-up to replace the former members of the Pussycat Dolls. They will instead form a new group who will be the "next generation".