A suspicious loading screen informational tab on the top left of the screen has been spotted lately following Update 15. It may or may not be an upcoming event or quest. It has to deal with the Grineer and a Bio Weapon. Plus since in the description, it says Intercepted Grineer possibly hinting at more Interception Missions to come with the Event or Quest. There are 3 Stages for this
“Investigate The Bio Weapon”, “Exterminate An Infestation” and “ Defend The Bomb”.