So Batman v Superman was pretty much a Batman movie. Yes Supes was there but he basically had nothing to do until the end of the film, which is kind of a bummer for those people who liked Man of Steel.
A full on sequel for Man of Steel had been in the planning stages until Warner Bros decided to fast track their universe building but the good news for fans of the flying one is that it will happen... eventually.
Superman is still a priority for Warner Bros and you can expect him to get his own solo sequel at some point- in case you haven't realised that definitely means he isn't dead. Because he's Superman obviously and that mound of earth totally moved at the end of Dawn of Justice.
The Wrap reports that Superman 2, or whatever it ends up being called, is still in 'active development'- an industry term which just means that they might get around to it. In the meantime Supes will be in Justice League and the sequel and is likely to pop up in some of the other DC flicks on the way like Wonder Woman, Aquaman, The Flash or the solo Batman movie.