Star Trek Online players taking part on the Tribble test server have uncovered what appears to be a new map sector filled with new locations such as Fesarius, Argus, Draconis and others. What this portends for a future update remains unknown, though the STO team has promised lots of new content for 2017. (the new sector is in yellow on the map below)
In addition, a new NX model has shown up on Tribble that was to have been shown in Season 5 of Enterprise if it had not been cancelled.
You can check out player speculation at the links above.
Thanks, anonymous tipster!