Garuda

Garuda is an upcoming warframe announced alongside Revenant. She is mentioned to be similar to Valkyr due to the theme of anger. It is likely she will come after Revenant during or after Fortuna.

Image of Garuda: https://vignette.wikia.nocookie.net/warframe/images/0/0f/Garuda_Concept_Art/revision/latest?cb=20180708235008