Just last month, discussion surrounding the future of the Drakengard & NieR series was brought forth in a Famitsu interview with the minds behind NieR: Automata. Producer Yosuke Saito and Director Yoko Taro have clearly expressed that if they were able to gather the same dream team once again, a sequel may be greenlit.
Hope there is a sequel, nier is awesome.
Hope there's a Drakengard 4