During PAX East 2016, Digital Extremes has revealed a lot of upcoming content for Warframe, including one new fairy warframe concept with razor butterflies that are stored in her arms and skirt, for example. She can shrink herself to a smaller size and has some sort of floating power. Her release is planned for update 19.
A Vauban Prime variant is planned for release late spring, with a cinematic trailer released to introduce it. There’s also a new arena event where you can duel Grineer champions, Exosuit Sentient enemies and the Lunaro Conclave Mode, a new sports game which is supposed to be fun and introduce new game mechanics.
Here are the PAX Warframe videos.