Samsung confirmed the S7 Active via its app
Recently, Samsung shipped a mysterious phone codenamed “Poseidon” to AT&T. Considering the fact that it was named as SM-G891A ( S6 Active was SM-G890A ) and it was sent to specifically AT&T which made the last Active models, it was rumored to be the next Galaxy Active phone. And, today Samsung unofficially confirmed the existence of S7 Active.
If you check the supported devices for Samsung’s Level app, then you will see Samsung Galaxy S7 Active is listed in there. As a result, we will eventually see the S7 Active.