The series will have a crew and visit new worlds, so it will likely take place on a ship, not a space station or Starbase like DS9. No word yet if that ship will be named "Enterprise," as it was in the original series (TOS), Star Trek: The Next Generation (TNG), and CBS' last attempt at a Star Trek television franchise, the 2001 prequel series Star Trek: Enterprise. However, a clue may lie in the music.
The music in the teaser begins similarly to that of the new movies, with a pulsing, driven melody as we fly past computer-generated planets and stars. However, it also contains the musical motif that both TOS and TNG share in their opening credits as the shows' respective captains utter the famous line "These are the voyages of the Starship Enterprise." That leads this author to believe that the new show will be more similar to those franchises (and maybe even feature a ship named "Enterprise," as those shows do) than it will be to Voyager, DS9, or Enterprise.
Cromwell is the only one of these actors who didn't play his character in the series that immediately preceded the Star Trek pilot he appeared in. Enterprise premiered just months after Voyager ended, but was set two centuries before the events of Voyager, which made it nearly impossible for a Voyager character to appear. ↩︎