According to Polish actress Alicja Bachleda-Curuś, who played Anya in The New Order, a new Wolfenstein is in the works, but it could take a couple of years.
Translated by Eurogamer, Bachleda-Curuś told Polish TV station TVN:
Im working on a video game, first part of which I have already made. Now were making a second one, which will take two more years.
I played this game as a child. I was very happy when I got to the point where I could shoot Hitler.
Judging by her comment, it seems this new Wolfenstein would be a direct sequel to The New Order.