Since the announcement at TennoCon back in July, players have been eagerly awaiting for confirmation of a release date. Currently, we can only say it will be deployed Fall 2017. Teasers and trailers are dropping like rain from the Devs at Digital Extremes showcasing the all new features including combat, crafting and the open world game play. This is a large update for Warframe that has kept the community in a frenzy for all the new gear and challenges.
The Plains of Eidolon will be capable of hosting up to 50 players at a time in the 3kmX3km new over world. To get around a little faster, Archwing has been implemented to help fast travel across this new expanse. A new Hub named Cetus will host many new merchants, vendors and quests. The economy of Cetus thrives from harvesting of living biomechanical structures, so this may be a likely theme around the town. Outside of Cetus, The Plains are scavenged by the Grineer searching for resources and Old War artifacts. Here is where players will be able to find the hidden camps, caves and subsystems in which to explore. You will even be able to fish the rivers. At night, the plains become a harrowing and deadly environment with a Spectral Sentient raid boss entering the scene.
Bosses and merchants arent all that's coming. Modular weapon crafting will also be introduced, giving players a much more customized feel to the weapons they craft. This is not only a cosmetic difference. The parts you upgrade with will determine anything from critical strikes to completely changing your Warframes stance. Not to mention new Warframes like the Glass Frame.