And, honestly, I'm sure this will be recognizably STAR TREK, with the usual iconography and staples: transporter beams, landing parties, tricorders, the Prime Directive, warp drives, impulse engines, Starfleet, the United Federation of Planets, etc. Probably even the occasional Klingon or Vulcan.
But it will be a 2017 version of STAR TREK, with the pacing and direction and production values and more serialized storytelling of a 2017 television series. And if it's less G-rated than the earlier versions ... well, SUPERGIRL is less G-rated than THE ADVENTURES OF SUPERMAN with George Reeves. Doesn't mean it's not the same kind of show, just done for different era with different standards.
The same way a modern DRACULA movie is still a DRACULA movie, even if it goes further than, say, the Bela Lugosi version.
To my mind, STAR TREK is not defined by how "adult' it is or isn't.