Queen’s Blade already has an oppai anime successor in the form of ファイト一発！充電ちゃん！！ / Fight Ippatsu Juuden-chan, if the bouncing, nipple packed trailer is anything to go by.
The anime is notable not only for being packed with reasonably sized oppai, but also for being based on a manga by ero-mangaka Bow Ditama, whose erotic art is well worth a look.
The jiggling oppai in more detail:
The anime will begin airing June 25th. Popularity seems assured.