In celebration of the franchise’s tenth anniversary, Square Enix has just announced the remaster of the game, which started it all (well, the one that moved things from the Drakengard to NieR franchises anyway). Nier is going to be remastered for the PlayStation 4, Steam, and Xbox One.
For those unfamiliar, Nier was the game which preceded NieR: Automata and established a new sub-series, the one Yoko Tarro is now most known for. Released ten years ago, Nier was a weird one. It continued the supposedly non-canonical secret fifth ending of the first Drakengard game and had two separate versions. In America, we got one game simply entitled Nier, whereas that same version was what was released on Japanese 360s as Nier: Gestalt. This remaster is going to be the version that was released initially on Japanese PS3s as Nier: Replicant with the remaster being called Nier: Replicant ver. 1.22474487139.
While this may all sound extremely confusing, the only real difference between the different versions was a superficial one. In the Gestalt/US version, we got a gruffer, older protagonist who was protecting his daughter. In contrast, in the Replicant/Japanese version, the protagonist was a bit younger and sleeker and was protecting his little sister instead.
In addition to the announcement of the remaster, Square Enix also released a teaser trailer for a mobile game (it will be a free-to-play role-playing game with the general consensus being that it is highly likely to be heavily monetized although this is as yet unconfirmed) entitled Nier: Reincarnation. Little is known about either upcoming project as of this writing; we pretty much just have these non-descript trailers to work from as well as the Google translations of the Japanese site. As of now, there is no announced release date for either project.